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Tytuł:
Antioxidant and antimicrobial activity of essential oils extracted from aromatic plants
Autorzy:
Yahaya, Muhammad F.
Kubmarawa, Dimas
Yelwa, Jibrin M.
Runde, Musa
Powiązania:
https://bibliotekanauki.pl/articles/1162022.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antimicrobial
Antioxidant
Cananga odorata
Citrus limon
Essential oils
Phytochemical screening
Vitex trifolia
bioactive agents and Alkaloids
Opis:
The antimicrobial and antioxidant activities of extracted essential oils in some aromatic plants were determined. Phytochemical screening was conducted using standard qualitative techniques, while the essential oils was extracted from the Citrus limon linn leaf, Vitex trifolia seed and Cananga odorata by modified steam distillation apparatus. Furthermor, the plant materials were tested using Antioxidant activity and Antimicrobial activity test. Citrus limon linn produced large volume essential oil (1.4 ml), Vitex trifola (0.7 ml) and Cananga odorata (0.5 ml) after 3hours of steam distillation. Antioxidant activities test using DPPH method reveals that all the essential oil determined showed positive effect, but the oil extracted from Citrus limon linn leaf could be a better antioxidant than that of Vitex tifolia and Cananga odorat when compared to commercial Ascorbic acid. The antioxidant activities of the essential oils of different plants under investigation showed a variation which may be as a result of the difference in their chemical compositions. Antimicrobial activities showed that all the essential oils were inhibited on the entire five microorganisms being used. However, Citrus limonlinn showed highest inhibition on the organisms (E. coli, S. typhi C. Kleb, P. avengunosa and S. aureus) compared to Cananga odorata and Vitex trifolia.
Źródło:
World Scientific News; 2018, 111; 13-25
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytochemical Profile and Antioxidant Potential of Rind Essential Oil of Citrus reticulate Blanco
Autorzy:
Tunde, Aborode Abdullahi
Adesewa, Adegble Victor
Powiązania:
https://bibliotekanauki.pl/articles/1030984.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antioxidant
Butylated Hydroxyanisole (BHA)
Butylated Hydroxytoluene (BHT)
Citrus reticulate
Oxidative stress
Phytochemical
Opis:
Oxidative stress occurs as a result of an imbalance between production of reactive oxygen species and the regulatory mechanism produced by human cells. The stress contributes to the pathogenesis of inflammatory diseases. Synthetic antioxidants like butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and ascorbic acid, are used in curtailing the menace of the stress. Their potential depends on the type of phytochemicals in the oil. It is on this basis this study aimed at isolating, characterizing and investigating antioxidant potential of rind essential oil of C. reticulata. To achieve this aim, 500g of fresh rinds of C. reticulata were pulverized and hydro-distilled for three hours. GC and GC-MS analysis of the oil revealed the abundance of hydrocarbon monoterpenoids (96%). The most abundant compounds in the oil were D-limonene (82.4%), γ-Terpinene (9.4%) and β-Myrcene (2.2%). The oil exhibited antioxidant activity, with IC50 value (10.73 μl/ml), which was lower to the activity of ascorbic acid (49.14 μl/ml). This shows that the oil is more active than ascorbic acid. Hence, the oil could be explored for the treatment of oxidative stress.
Źródło:
World Scientific News; 2020, 145; 366-378
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vacuum infiltration of 24-epibrassinolide delays chlorophyll degradation and maintains quality of lime during cold storage
Autorzy:
Tavallali, V.
Powiązania:
https://bibliotekanauki.pl/articles/11880401.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Iran
plant cultivation
Persian lime
Citrus latifolia
24-epibrassinolide
chlorophyll degradation
cold storage
postharvest quality
brassinosteroid
Opis:
Effects of 24-epibrassinolide (EBR) treatments on chlorophyll (Chl) degradation and postharvest quality of two lime (‘Persian lime’ and ‘Tahiti’) cultivars during chilling-induced storage were studied in this work. EBR at 0, 2.5, 5 and 10 µM were applied to fruit by vacuum infiltration at 30.63 kPa for 7 min and afterward stored at 4°C for 60 days. Postharvest EBR application effectively maintained greater fruit firmness and lessened weight loss during cold storage. The results displayed that EBR treatments efficiently delayed the reduction of the Chl a contents and hue values. EBR treatments significantly increased ascorbic acid content, total phenolic content (TPC), antioxidant activity, and titratable acidity (TA). On the other hand, the treatments reduced soluble solids concentration (SSC), pH, and SSC/TA ratios during cold storage. Overall, EBR application by vacuum infiltration could be an effective and simple method for maintaining postharvest quality of limes during cold storage.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 1; 35-48
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response surface methodology for optimization studies of hydro-distillation of essential oil from pixie mandarin (Citrus reticulata Blanco) peels
Autorzy:
Tan, Phat Dao
Ngo, Thi Cam Quyen
Tran, Thi Yen Nhi
Chi, Cuong Nguyen
Trung, Thanh Nguyen
Xuan, Tien Le
Powiązania:
https://bibliotekanauki.pl/articles/2081508.pdf
Data publikacji:
2021
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Hydro-distillation
pixie mandarin oil (Citrus reticulata Blanco)
RSM
GC-MS
Opis:
Essential oil extraction technique from mandarin pixie peels by hydro-distillation is optimized by respon-se surface methodology (RSM). Mathematical techniques were used in experimental design to evaluate the impacts of factors that affect the extraction process and improve the yield of the extraction process. A central mixed design based on infl uencing variables such as water ratio (3–5 mL/g), temperature (110–130° C) and extraction time (90–150 min) was adopted with essential oil yield as the target func-tion. Correlation analysis of the mathematical regression model showed that the quadratic polynomial model can be used to optimize hydro-distillation of pixie mandarin oil. The results showed that under the optimum extraction conditions, the highest quantity of essential oils was achieved (7.28 mL/100 g materials). In terms of statistical analysis, the signifi cance levels (p-value <0.05) of the model showed that the experimental results had a good impact between factors. The coeffi cient of determination indicating the match between the experimental value and the predicted value of the model was high (R2>0.9). The chemical composition of the essential oil was analyzed by Gas Chromatography-Mass Spectrometry, revealing the dominance of limonene content (97.667%), which implies that the essential oil of pixie mandarin could be an alternative source of limonene.
Źródło:
Polish Journal of Chemical Technology; 2021, 23, 4; 26-34
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of position of fruits in a tree and number of fruits per panicle on growth and quality of citrus
Autorzy:
Sakhidin, -
Teixeira de Silva, J.A.
Suparto, S.R.
Powiązania:
https://bibliotekanauki.pl/articles/1076701.pdf
Data publikacji:
2018
Wydawca:
Instytut Ogrodnictwa
Tematy:
citrus
citrus fruit
citrus orchard
central Java
Indonesia
fruit diameter
fruit weight
fruit pulp
sugar content
vitamin C
Opis:
This research aimed to study the effect of the position of fruits in a tree (inner or outer) and the number of fruits per panicle (one, two or three) on the growth and quality of citrus ‘Pontianak’. The study was conducted in a citrus orchard in Central Java, Indonesia for two seasons, 2014/2015 and 2015/2016. The results indicated that position of fruits on the tree did not influence weight and diameter of fruits, weight of fruit pulp, and contents of sugars and total acids. Increasing the number of fruits per panicle decreased the weight and diameter of fruits and the weight of pulp but increased the contents of vitamin C and total acids.
Źródło:
Journal of Horticultural Research; 2018, 26, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Właściwości fizykochemiczne i sorpcyjne węgli aktywnych otrzymanych przez aktywację skór owoców cytrusowych oraz niskiej jakości węgla brunatnego
Physicochemical and sorption properties of activated carbons obtained from citrus fruit peels and low quality lignite
Autorzy:
Nowicki, P.
Kaźmierczak-Raźna, J.
Pietrzak, R.
Powiązania:
https://bibliotekanauki.pl/articles/296829.pdf
Data publikacji:
2016
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
citrus fruit peels
lignite
direct activation
physical activation
NO2 removal
H2S removal
adsorption from liquid phase
skóry owoców cytrusowych
węgiel brunatny
aktywacja bezpośrednia
aktywacja fizyczna
usuwanie NO2
usuwanie H2S
adsorpcja z fazy ciekłej
Opis:
Common citrus fruit peels (banana, grapefruit and orange) as well as low quality lignite were used as precursors for the preparation of cheap activated carbons. In the first step, each of the precursors was air-dried at 110°C, crushed and sieved to the grain size of 5÷6 mm. Next the crushed materials were divided into two parts and subjected to two different treatments: direct activation of the precursors with carbon dioxide or pyrolysis of raw materials followed by physical activation with carbon dioxide. The effect of two variants of thermo-chemical treatment on the elemental composition, textural parameters and acidicbasic character of the surface of adsorbents prepared has been tested. Finally, the activated carbons were tested as adsorbents against two very hazardous and widespread gas pollutants, namely nitrogen dioxide and hydrogen sulphide, as well as toward inorganic and organic liquid pollutants represented by iodine and methylene blue. Depending on the precursor as well as method of preparation, the final products were microporous or mesoporous activated carbons with rather poorly developed surface area ranging from 107 to 527 m2/g and total pore volume from 0.09 to 0.37 cm3/g, showing strongly basic character of the surface. The results obtained have also proved that a proper choice of activation procedure for biomass or low quality lignite allows to produce effective adsorbents with good sorption capacity toward gaseous and liquid pollutants, especially for nitrogen dioxide and iodine.
W pracy przedstawiono wyniki badań nad otrzymywaniem węgli aktywnych ze skór owoców cytrusowych oraz niskiej jakości węgla brunatnego. Adsorbenty węglowe otrzymano na drodze aktywacji bezpośredniej prekursorów oraz aktywacji fizycznej karbonizatów za pomocą tlenku węgla(IV). Zbadano wpływ wariantu aktywacji na skład elementarny, parametry teksturalne i właściwości kwasowo-zasadowe wytworzonych materiałów węglowych, a także na efektywność usuwania tlenku azotu(IV) i siarkowodoru ze strumienia powietrza oraz jodu i błękitu metylenowego z roztworów wodnych. Na podstawie przeprowadzonych badań stwierdzono, że produkty aktywacji charakteryzują się dość przeciętnie rozwiniętą powierzchnią właściwą mieszczącą się w przedziale od 107 do 527 m2/g i całkowitą objętością porów wynoszącą od 0,09 do 0,37 cm3/g. Wykazano również, że zarówno aktywacja bezpośrednia prekursorów, jak i aktywacja fizyczna karbonizatów za pomocą CO2 prowadzi do uzyskania materiałów o wysokiej zawartości popiołu i wyraźnie zasadowym charakterze powierzchni. Przeprowadzone testy sorpcyjne wykazały ponadto, iż węgle otrzymane poprzez aktywację skór owoców cytrusowych oraz niskiej jakości węgla brunatnego charakteryzują się dobrymi zdolnościami sorpcyjnymi wobec zanieczyszczeń gazowych i ciekłych, w szczególności wobec tlenku azotu(IV) i jodu.
Źródło:
Inżynieria i Ochrona Środowiska; 2016, 19, 3; 341-352
1505-3695
2391-7253
Pojawia się w:
Inżynieria i Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Minerals content, essential oils composition and physicochemical properties of Citrus jambhiri Lush. (Rough Lemon) from the Sudan
Autorzy:
Mohammed, A. M. H.
Ibrahim, M. A
Omran, A. A.
Mohamed, E. M.
Elsheikh, S. E. M.
Powiązania:
https://bibliotekanauki.pl/articles/412508.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Citrus jambhiri
Rutaceae
atomic absorption spectroscopy (AAS)
Flame Atomic Emission Spectroscopy (FAES)
metal content
essential oils
Opis:
Minerals content of Citrus jambhiri (rough lemon) fruit was qualitatively and quantitatively analyzed using atomic absorption spectroscopy (AAS) and flame atomic emission spectrometry (FAES). The peel, moisture and ash contents of rough lemon were found to be 18.35 %, 23.75 % and 2.04 % respectively. Vitamin C (ascorbic acid) of rough lemon juice was found to be 70.0 mg/100 g. The chemical composition of essential oil of rough lemon peel was determined. The major compound was found to be limonene (84.5 %) followed by sabinene, β-myrcene, α-terpineol, 1,3-tetradecadiene and linalool.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 9, 1; 25-30
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Od Ogrodu Hesperyd do „Cytrusomanii” w ogrodach europejskich władców w XVI-XVIII wiek - Symbolika i historia uprawy roślin cytrusowych
From the garden of Hesperides to “Citrus mania” in the gardens of European rulers in XVI-XVIII centuries - the history and symbolic use of citrus plants
Autorzy:
Malawski, Seweryn
Powiązania:
https://bibliotekanauki.pl/articles/1879794.pdf
Data publikacji:
2015
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
ogrody
Medyceusze
August II
cytrusy
oranżeria
gardens
Medici
citrus
orangery
Opis:
Historia uprawy roślin cytrusowych sięga czasów starożytnych, jednak to w dobie renesansu zyskały one szczególne znaczenie jako element sztuki ogrodowej. Wtedy też zaczęto wykorzystywać nie tylko ich użytkowy charakter, ale również wartości dekoracyjne i znaczenie symboliczne. Pierwsze udokumentowane wykorzystanie cytrusów do celów propagandowych miało miejsce w ogrodzie Medyceuszy w Castello nieopodal Florencji. W okresie tym owoce cytrusów utożsamiano z mitycznymi „złotymi jabłkami” Hesperyd, fakt ten wykorzystany został przez ród Medyceuszy w tworzeniu ogrodu o politycznym przesłaniu. Wspaniałą kolekcję roślin kubłowych, w tym cytrusów, posiadał również w Wersalu król Francji Ludwik XIV. W okresie tym oranżeria i parter pomarańczowy stały się znaczącym eremem ogrodowej kompozycji i programu. Wielkim miłośnikiem uprawy roślin cytrusowych był także elektor saski i król Polski August II Mocny. Podobnie jak Kosma I Medyceusz, utożsamiał się on z mitycznym Heraklesem, a w swych ogrodach w Dreźnie i Warszawie zgromadził olbrzymią kolekcję tych roślin - zwłaszcza pomarańczy gorzkiej. Uprawą cytrusów pasjonował się również ostatni król Polski, Stanisław August Poniatowski, a także car Aleksander II, który odkupił część kolekcji Augusta oraz wybudował nową oranżerię w parku łazienkowskim w Warszawie w celu jej utrzymywania.
The history of growing citrus plants dates back to ancient times but in the Renaissance era they gained particular importance as an element of garden art. At that time they became popular for their decorative and symbolic significance, as well as their originally intended purpose. The first documented use of citrus fruit as “garden art” took place in the garden of the Medici at Castello near Florence. During this period, citrus fruits were identified with the mythical “golden apples” of Hesperides. This fact was used by the Medici family in the garden to create a political message. The great collection of container plants including citrus was also held in Versailles, by French King Louis XIV. From that time the conservatory and orange parterre have become a sig- nifi cant element of garden composition and program. The Elector of Saxony and the King of Poland - August II the Strong was also a great lover of citrus fruits. Similar to Cosimo I de’ Medici, he identified himself with the mythical Heracles, and in his gardens in Dresden and Warsaw amassed huge collections of those plants - especially the bitter oranges which bear “golden” fruits. The last Polish king, Stanislaw August Poniatowski, was fascinated by citrus cultivation, as was Tsar Alexander II, who repurchased part of August II collection and built a new orangery in Lazienki Park in Warsaw for its maintenance.
Źródło:
Roczniki Humanistyczne; 2015, 63, 4; 59-84
0035-7707
Pojawia się w:
Roczniki Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Competitive insertion of the citrus-lemon chain in global value chains in Colombia
Autorzy:
López, Aleksander Blandón
Vega, Gerardo Pedraza
Rubio-Rodriguez, Gustavo Adolfo
Powiązania:
https://bibliotekanauki.pl/articles/27324052.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Zielonogórski. Wydział Ekonomii i Zarządzania
Tematy:
Colombia
sustainable development
reduction of poverty
vulnerable sectors
rural areas
citrus products
competitiveness
Kolumbia
zrównoważony rozwój
redukcja ubóstwa
sektory wrażliwe
obszary wiejskie
produkty cytrusowe
konkurencyjność
Opis:
This research delves into the identification of opportunities for the consolidation of the lemon value chain in the department of Tolima, Colombia, through the associativity model called: Special Administrative Planning Region. This model is a land-use planning system, officially recognized in Article 325 of the Political Constitution of Colombia and in Law 114 of 2011, which functions as a planning tool at the regional level. Its main objective is to integrate a given region with other territorial entities at the departmental level. The study is framed within exploratory research that employs qualitative and quantitative methodologies for its development, in addition to using data collection instruments, in order to identify the main elements that define the possibilities of establishing a profitable and sustainable value chain in the citrus-lime sector in Tolima. The results show that the potential for competitive insertion of lemon in global value chains reaches likely international markets such as Russia, Germany, France, Poland, Canada and Saudi Arabia, and the support of different government institutions. However, it is necessary to overcome major threats and weaknesses that currently hinder this insertion.
Źródło:
Management; 2023, 27, 2; 64--81
1429-9321
2299-193X
Pojawia się w:
Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of ecological restoration patterns on runoff and sediment in an abandoned coal mine of Southern China
Autorzy:
Li, Hao
Chen, Wenbo
Zhang, Cheng
He, Lei
Liang, Haifen
Li, Haifeng
Liu, Dingpu
Powiązania:
https://bibliotekanauki.pl/articles/28407391.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
citrus fruit
soil conservation
vegetation
Jiangxi Province
ecological restoration
coal mine
owoce cytrusowe
ochrona gleby
wegetacja
Prowincja Jiangxi
renowacja ekologiczna
kopalnia węgla
Opis:
Evaluating the ecological economic benefits of different ecological restoration patterns in abandoned mines is important in ecological restoration study. Taking the abandoned coal mine in Luoshi Township of Fengcheng county, Jiangxi province, as a case, 4 different ecological restoration patterns (grapefruit with grass vegetation – Pattern I, pine with grass vegetation – Pattern II, grapefruit – Pattern III, and bare slope – Pattern IV) have been conducted to study the runoff and sediment yield under natural rainfall conditions. The results showed that the ecological restoration patterns and rainfall intensity can significantly affect runoff and sediment yield which increased as rainfall intensity increased: Pattern IV > Pattern III > Pattern II > Pattern I. For the optimal ecological restoration with Pattern I, the average runoff and sediment reduction was 59.01 and 77.1%, respectively, in all rainfall intensities. Multivariate analysis of variance (MANOVA) showed that runoff and sediment were significantly affected by ecological restoration pattern and rainfall intensity (P < 0.05). Correlation analysis of runoff and sediment yields indicated that the reduction effect on sediment yield increased with the decrease of runoff, and the relationships between runoff and sediment at different ecological restoration patterns could be fitted with a linear function. Moreover, the vegetation configuration that combines fruit farming with grass can be not only beneficial to control soil and water conservation but produce considerable economic and ecological benefits.
Źródło:
Environment Protection Engineering; 2023, 49, 4; 29--44
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Product diversification from pomelo peel. Essential oil, Pectin and semi-dried pomelo peel
Autorzy:
Le, T. N. Huyen
On, T. N. H
Tran, T. Y. Nhi
Dao, T. Phat
Mai, H. Cang
Powiązania:
https://bibliotekanauki.pl/articles/2081509.pdf
Data publikacji:
2021
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Citrus grandis
Pomelo peel essential oil
Extract pectin
Pomelo peels products
Opis:
Currently, agriculture has shifted to green production, in which the recycling of post-production by-products is a key issue. In the present work, by-products such as pomelos were studied to promote consumption and enhance the value of pomelo. From pomelo material, essential oils extracted from pomelo peels, pectin, and drying pomelo products have been diversifi ed. In the extraction process of essential oils, the hydrodistillation method was applied in conjunction with the response surface method to obtain the optimal conditions of infl uence factors. These essential oils were quantifi ed as well as determined for components by GC-MS. The pectin recognition process was done by immersion method in HCl acid (pH 2) and the drying process was made with a heat pump dryer under the effects of drying temperature, drying time and wind rate. The results of the essential oil products reached the highest (0.88 ±0.006 g) at the material size of 3 mm, the distillation time of 27 min, and the ratio of raw materials/solvents of 1/12 g/mL. The main components found in pomelo peeling essential oils included limonene (71.768%), γ-terponene (12,847%), α-Phellandrene (2.979%), β-myrcene (2.668%), 1R-α-pinene (2,656%), and β-pinene (1,191%). The pectin content was the highest under the temperature of 90 oC, extraction time of 60 min and ratio/solvent ratio of 1:32 g/mL. Under these extraction conditions, 48% of concentrated pectin content was obtained. Surveying conditions for drying white pomelo peels are capable of reversing: refunded drying pomelos are drying heat pumps in the following conditions: 50 oC drying temperature, the drying time of 90 min, and wind rate of 12 m/s. Product with hardness 309.862 N.
Źródło:
Polish Journal of Chemical Technology; 2021, 23, 4; 17-25
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro regeneration induced in leaf explants of Citrus limon L. Burm cv. ‘Primofiore’
Regeneracja in vitro Citrus limon L. Burm cv. ‘Primofiore’ z eksplantatów liściowych
Autorzy:
Kasprzyk-Pawelec, A.
Pietrusiewicz, J.
Szczuka, E.
Powiązania:
https://bibliotekanauki.pl/articles/11543009.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
in vitro
plant regeneration
leaf explant
explant
callus induction
auxin
cytokinin
Citrus limon
Primofiore cultivar
Opis:
In vitro organogenesis was studied using Citrus limon L. Burm cv. ‘Primofiore’ leaf explants. The purpose of the present study was to optimize conditions for callogenesis and organogenesis of C. limon. Explants of C. limon were cultured on 16 different media supplemented with various combinations of plant growth regulators, both auxins and cytokinins, such as 6-benzylaminopurine (BAP), naphthalene acetic acid (NAA), 2,4-dichlorophenoxyacetic acid (2,4-D), and kinetin. The best shoot induction was obtained when the leaf explants were cultured on Murashige & Tucker media supplemented with 3.5 mg·L-1 BAP. Histological investigation revealed most likely the initial phase of development of leaf explants during in vitro regeneration of C. limon. t
Organogenezę in vitro badano u Citrus limon L. Burm cv. ‘Primofiore’, wykorzystując eksplantaty z liści. Celem badań była optymalizacja warunków do indukcji tkanki kalusowej oraz regeneracji roślin C. limon. Eksplantaty C. limon wykładano na 16 pożywek różnego rodzaju, które dodatkowo uzupełniano kombinacjami roślinnych regulatorów wzrostu, zarówno auksyn, jak i cytokinin, takimi jak 6-benzylaminopuryna (BAP), kwas naftalenooctowy (NAA), kwas 2,4-dichlorofenoksyoctowy (2,4-D) i kinetyna. Regenerację pędową uzyskano, gdy eksplantaty liściowe wykładano na pożywkę Murashige and Tuckera uzupełnioną 3,5 mg·L-1 BAP. Badania histologiczne pozwoliły na przedstawienie początkowej fazy rozwoju eksplantatów z liści w trakcie regeneracji in vitro C. limon.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2015, 14, 4; 143-153
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Partial characterization of proteases from Citrus sinensis fruit peel
Autorzy:
Ibraheem, Ademola Saheed
Malomo, Silvia O.
Powiązania:
https://bibliotekanauki.pl/articles/1178685.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Citrus sinensis
Proteases
industries
kinetic parameters
Opis:
Proteases are one of the most important enzymes that have various physiological and industrial applications. This study was carried out to purify and partially characterize proteases from Citrus sinensis fruit peel. Three active fractions of the proteases (I, II and III) were obtained. The Vmax for proteases I, II, III and pooled fraction were 185.19, 192.31, 111.11 and 163.93 U/ml with Michaelis-Menten’s constant (Km) 1.01, 0.44, 0.67 and 0.37 mg/ml respectively. The enzymes were optimally active at 40-50 °C. However, they retained activity at 60-70 °C. Protease I was stable up to 60 °C while proteases II and III retained more than 80% activity in the range of 25-70 °C. The optimal pH of proteases II and III was 7 while protease I was optimally active at pH 8. The enzymes were stable at alkaline pH especially between 6 and 9 retaining more than 60% of its activity. The stability of these enzymes at high temperature and different pH may be an indication of its potential applications in food, chemical and laundry industries.
Źródło:
World Scientific News; 2017, 67, 2; 250-264
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antimicrobial effects of Citrus sinensis peel extracts against periodontopathic bacteria: an in vitro study
Autorzy:
Hussain, K.A.
Tarakji, B.
Kandy, B.P.P.
John, J.
Mathews, J.
Ramphul, V.
Divakar, D.D.
Powiązania:
https://bibliotekanauki.pl/articles/872640.pdf
Data publikacji:
2015
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
antimicrobial effect
Citrus sinensis
peel extract
periodontopathic bacteria
periodontal disease
Aggregatibacter actinomycetemcomitans
Prevotella intermedia
Porphyromonas gingivalis
in vitro study
Opis:
Background. Use of plant extracts and phytochemicals with known antimicrobial properties may have great significance in therapeutic treatments. Objective. To assess the in vitro antimicrobial potential and also determine the minimum inhibitory concentration (MIC) of Citrus sinensis peel extracts with a view of searching a novel extract as a remedy for periodontal pathogens. Materials and Methods. Aqueous and ethanol (cold and hot) extracts prepared from peel of Citrus sinensis were screened for in vitro antimicrobial activity against Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Prevotella intermedia, using agar well diffusion method. The lowest concentration of every extract considered as the minimal inhibitory concentration (MIC) values were determined for both test organisms. Confidence level and level of significance were set at 95% and 5% respectively. Results. Prevotella intermedia and Porphyromonas gingivalis were resistant to aqueous extracts while Aggregatibacter actinomycetemcomitans was inhibited at very high cncentrations. Hot ethanolic extracts showed significantly higher zone of inhibition than cold ethanolic extract. Minimum inhibitory concentration of hot and cold ethanolic extracts of Citrus sinensis peel ranged between 12-15 mg/ml against all three periodontal pathogens. Conclusions. Both extracts were found sensitive and contain compounds with therapeutic potential. Nevertheless, clinical trials on the effect of these plants are essential before advocating large-scale therapy.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2015, 66, 2
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of amino acid application on induced resistance against citrus canker disease in lime plants
Autorzy:
Hasabi, V.
Askari, H.
Alavi, S.M.
Zamanizadeh, H.
Powiązania:
https://bibliotekanauki.pl/articles/65104.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
amino acid
citrus bacterial canker
canker
plant disease
lime
induced resistance
Opis:
Citrus bacterial canker, caused by Xanthomonas citri subsp. citri (Xcc), is a destructive disease. So far, the chemicals used to control this pathogen are either ineffective or harmful to the environment. To improve control of this disease, lime (Citrus aurantifolia) were treated with L-arginine, L-methionine, L-ornithine, and distilled water. Plants were inoculated with Xcc, 48 hours post treatment. Lesion diameters of inoculated leaves were evaluated four weeks after inoculation with a bacterial suspension. Changes in β-1,3-glucanase transcript levels and activity of antioxidant enzymes, catalase, peroxidase, and phenylalanine ammonia-lyase were investigated at 48 hours post treatment and 24, 48, and 72 hours post inoculation. Based on the results of phenotypic, antioxidant enzyme activity and a molecular study of the stressed plants, it was found that those plants treated with the amino acid methionine significantly increased the plant induced resistance as well as decreased the severity of disease by reducing necrotic lesion size.
Źródło:
Journal of Plant Protection Research; 2014, 54, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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