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Wyszukujesz frazę "secondary metabolites" wg kryterium: Temat


Tytuł:
Chemical diversity of silverweed (Potentilla anserina L.) growing at the edges of arable fields.
Autorzy:
Angielczyk, Mirosław
Bączek, Katarzyna
Geszprych, Anna
Przybył, Jarosław L.
Węglarz, Zenon
Powiązania:
https://bibliotekanauki.pl/articles/2199570.pdf
Data publikacji:
2010-06-01
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
catechins
flavonoids
phenolic acids
populations
secondary metabolites
silverweed herb
tannins
Opis:
The medicinal usage of silverweed herb (Anserinae herba) is primarily related to the presence of phenolic compounds. Three populations of silverweed (Potentilla anserina L.) occurring at the edges of arable fields in Podlasie area (north-eastern Poland) were compared in respect of the content and composition of phenolics. Herb collected from the investigated populations differed in the content of determined compounds. The tannin content was very low (0.81-0.91%). The total flavonoid content ranged from 0.48 to 0.60%. Phenolic acid content was much higher (1.38-2.26%). Three flavan-3-ols: (+)-catechin, (-)-epicatechin, and (-)-epigallocatechin, four flavonol glycosides: rutoside, quercetin-3-O-glucoside, isorhamnetin-3-O-glucoside, and kaempferol-3-O-glucoside, as well as one phenolic acid (ellagic acid) were identified as a_result of HPLC analysis of methanolic extracts from the investigated raw materials. The most considerable differences between populations concerned the content of (+)-catechin (87.0-199.3 mg × 100 g-1), (-)-epigallocatechin (141.9-290.6 mg × 100 g-1), and rutoside (192.3-386.0 mg × 100 g-1) in herb...
Źródło:
Plant Breeding and Seed Science; 2010, 61; 41-46
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Współczesne metody ekstrakcji, izolacji i analizy metabolitów wtórnych roślin
Autorzy:
Haliński, Ł. P.
Czerwicka, M.
Stepnowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/274205.pdf
Data publikacji:
2010
Wydawca:
Roble
Tematy:
metabolity wtórne
ekstrakcja roślin
analiza ilościowa
analiza jakościowa
secondary metabolites
plant extraction
quantitative analysis
qualitative analysis
Źródło:
LAB Laboratoria, Aparatura, Badania; 2010, 15, 6; 16-21
1427-5619
Pojawia się w:
LAB Laboratoria, Aparatura, Badania
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An improved method for RNA isolation from plants using commercial extraction kits
Autorzy:
Kalinowska, Elżbieta
Chodorska, Maria
Paduch-Cichal, Elżbieta
Mroczkowska, Karolina
Powiązania:
https://bibliotekanauki.pl/articles/1039717.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
total RNA
secondary metabolites
Opis:
Isolation of RNA from plants rich in secondary metabolites using commercial kits often results in contaminated preparations which are not suitable for downstream applications. Although many specific protocols appropriate for plants with a high content of phenolics, anthocyanins and polysaccharides have been developed, these are often expensive, time consuming and not applicable to different types of tissues. This study presents a simple and efficient modification of RNA extraction from different types of tissues using two commercial reagent kits. By simple improvement, we routinely obtained high-quality RNA of the following plants: the blackcurrant bush, black chokeberry bush, pear tree, apricot tree, apple tree, hardy kiwi, tangerine tree, highbush blueberry and cranberry plant.
Źródło:
Acta Biochimica Polonica; 2012, 59, 3; 391-393
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Therapeutic Properties of Epigaeic Lichens from Sowia Gora
Właściwości lecznicze porostów naziemnych Sowiej Góry
Autorzy:
Studzińska-Sroka, E.
Zarabska-Bożejewicz, D.
Powiązania:
https://bibliotekanauki.pl/articles/388847.pdf
Data publikacji:
2013
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
Cetraria
Cladonia
Peltigera
secondary metabolites
nature protection
metabolity wtórne
ochrona przyrody
Opis:
One of the aim of nature protection should be improving the knowledge of society about properties of observed organisms. It can be helpful in creating the properly ecological conspicuous. Some species of lichens, eg genus Usnea, Ramalina, Pseudevernia, Cetraria, were commonly used in medicine from antiquity time. Their therapeutic properties are connected with the presence of secondary metabolites, eg cetraric acid, furmarprotocetraric acid, usnic acid. Nowadays few of the lichens have still application in producing some pills, tablets, syrups, toothpastes. During field trips in Sowia Gora (Puszcza Notecka) some epigaeic lichens known from therapeutic properties were recorded. Suggestion of necessity of putting some information connected with therapeutic properties of species in the didactic table along the road of nature complexes characterized by high diversity of lichens is given. It permits to increase the level of interest in this group of species and ipso facto contribute to protection of lichens.
Jednym z celów ochrony przyrody powinno być poszerzanie wiedzy społeczeństwa na temat właściwości obserwowanych organizmów. Może być to pomocne w kreowaniu właściwej świadomości prośrodowiskowej. Niektóre gatunki porostów, np. z rodzaju Usnea, Ramalina, Pseudevernia, Cetraria, były powszechnie wykorzystywane w medycynie od czasów starożytnych. Ich lecznicze właściwości powiązane są z obecnością metabolitów wtórnych, takich jak kwas cetrarowy, kwas furmaprotocetrarowy, kwas usninowy. Obecnie istnieje grupa porostów, która jest wykorzystywana przy produkcji tabletek, syropów, past do zębów. Podczas badań terenowych w okolicach Sowiej Góry (Puszcza Notecka) udało się zaobserwować interesujące porosty naziemne wykazujące właściwości lecznicze. W artykule zasygnalizowano konieczność umieszczania informacji na temat właściwości leczniczych porostów na tablicach o charakterze dydaktycznym w kompleksach przyrodniczych cechujących się dużym bogactwem gatunkowym porostów. Pozwoli to zwiększyć zainteresowanie tą omówioną grupą organizmów i tym samym przyczynić się do ochrony porostów.
Źródło:
Ecological Chemistry and Engineering. A; 2013, 20, 6; 675-680
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane wtórne metabolity roślinne jako środki przeciwdrobnoustrojowe
Secondary plant metabolities as antimicrobial agents
Autorzy:
Adaszyńska, M.
Swarcewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/172678.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
właściwości przeciwdrobnoustrojowe
wtórne metabolity roślinne
medycyna naturalna
antimicrobial properties
secondary metabolites of plants
herbal medicines
Opis:
One of the oldest achievements of the human thought is the use of plants and plant extracts in therapeutics. Drugs of a plant origin are characterized by multieffects. In recent years, much interest was directed at medicinal plants containing a mixture of biologically active substances with antimicrobial properties. In medicine, for many years have been used substances extracted from plants and their secondary metabolites and plant extracts, but now due to the development of organic chemistry, pharmacology and medicine, we can determine which biologically active substances produced by these plants are useful. Antimicrobial activity were described for selected groups of plant secondary metabolites, which potentially would allow their use as antimicrobial substances in medicines. These substances can be complementary to basic medical treatment, because their main advantage is a lower incidence of side effects. This paper presents an overview of research on antimicrobial properties of alkaloids, coumarins, flavonoids, terpenoids and essential oils, phytosterols, and tannins and phenolic compounds. Examples of alkaloids active against strains of S. aureus, E. faecalis and E. coli are quindoline (1) and cryptolepine (2) which are components of an extract of Sida acuta [7]. Saal et al. described the effect of 7-amino-4-methylcoumarin (8) and daphnetin (9) isolated from Gingo biloba. These compounds are characterized by activity against strains of the genus S. aureus, E. coli and Salmonella entertidis [5]. Apigenin (15) and amentoflavone (16) have a strong activity against pathogenic fungi Candida albicans, S. cerevisiae, and T. beigelii. Terpenoids are potent phorbol esters (21-26), dustanine (27), 15-acetoxydustaine (28), cycloartenole (29) [14]. Several phytosterols has antibacterial activity [2, 5, 48]. The examples might be: stigmasterol (36), β-sitosterol (37), epidoxysterol (38) isolated from Morinda citrifolia (Rubiaceae), which were characterized by strong activity against Mycobacterium intracellulare [5]. Many authors reported that the tannins and phenolic compounds were characterized by antimicrobial activity [49-53]. Natural substances that inhibit the growth of microorganisms are becoming an alternative to synthetic compounds, as this literature review confirms it.
Źródło:
Wiadomości Chemiczne; 2013, 67, 3-4; 303-319
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Composition, biological properties and therapeutic effects of lavender (Lavandula angustifolia L.). A review
Lawenda wąskolistna (Lavandula angustifolia L.) - lecznicza siła natury. Przegląd
Autorzy:
Prusinowska, R.
Smigielski, K.B.
Powiązania:
https://bibliotekanauki.pl/articles/950560.pdf
Data publikacji:
2014
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
lavender
lavandula angustifolia
herbs
essential oils
phytotherapy
secondary plant
metabolites
Opis:
Lavender (Lavandula angustifolia) is a shrub of the family Lamiaceae, native to the Mediterranean region. The material used for herbal purposes includes lavender flowers (Lavandula flores) containing essential oil (3%), anthocyanins, phytosterols, sugars, minerals, and tannins. The qualitative and quantitative composition of the essential oil of lavender is variable and depends on genotype, growing location, climatic conditions, propagation, and morphological features. The essential oil contains over 300 chemical compounds. The dominant components are linalool, linalyl acetate, terpinen-4-ol, acetate lavandulol, ocimene, and cineole. Lavender essential oil has good antioxidant and antimicrobial activities and a significant positive effect on the digestive and nervous systems. Lavender extract prevents dementia and may inhibit the growth of cancer cells, while lavender hydrolate is recommended for the treatment of skin problems and burns.
Lawenda wąskolistna (Lavandula angustifolia) to krzewiasta roślina z rodziny jasnotowatych (Lamiaceae), pochodząca z terenów basenu Morza Śródziemnego. Surowcem zielarskim są kwiaty lawendy (Lavandula flores), zawierające olejek eteryczny (do 3%), antocyjany, fitosterole, cukry, związki mineralne i garbniki. Skład jakościowy i ilościowy olejku eterycznego z lawendy jest zmienny i zależy od genotypu, miejsca uprawy, warunków klimatycznych, sposobu rozmnażania i cech morfologicznych. W olejku eterycznym wstępuje ponad 300 związków chemicznych, składnikami dominującymi są linalol, octan linalilu, terpinen-4-ol, octan lawandulolu, ocymen oraz cyneol. Olejek eteryczny charakteryzuje dobra aktywność przeciwdrobnoustrojowa i antyoksydacyjna oraz wyraźny pozytywny wpływ na układ trawienny i nerwowy. Ekstrakt z lawendy przeciwdziałała otępieniu oraz może wpływać hamująco na rozwój komórek rakowych, zaś hydrolat lawendowy zalecany jest w leczeniu problemów skórnych i poparzeń.
Źródło:
Herba Polonica; 2014, 60, 2
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antibacterial activity of caffeine against plant pathogenic bacteria
Autorzy:
Sledz, Wojciech
Los, Emilia
Paczek, Agnieszka
Rischka, Jacek
Motyka, Agata
Zoledowska, Sabina
Piosik, Jacek
Lojkowska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/1039014.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
antibacterial activity
plant secondary metabolites
Ralstonia solanacearum
Clavibacter michiganesis subsp. sepedonicus
Dickeya solani
Pectobacterium atrosepticum
Pseudomonas syringae pv. tomato and Xanthomonas campestris subsp. campestris
Opis:
The objective of the present study was to evaluate the antibacterial properties of a plant secondary metabolite - caffeine. Caffeine is present in over 100 plant species. Antibacterial activity of caffeine was examined against the following plant-pathogenic bacteria: Ralstonia solanacearum (Rsol), Clavibacter michiganesis subsp. sepedonicus (Cms), Dickeya solani (Dsol), Pectobacterium atrosepticum (Pba), Pectobacterium carotovorum subsp. carotovorum (Pcc), Pseudomonas syringae pv. tomato (Pst), and Xanthomonas campestris subsp. campestris (Xcc). MIC and MBC values ranged from 5 to 20 mM and from 43 to 100 mM, respectively. Caffeine increased the bacterial generation time of all tested species and caused changes in cell morphology. The influence of caffeine on the synthesis of DNA, RNA and proteins was investigated in cultures of plant pathogenic bacteria with labelled precursors: [3H]thymidine, [3H]uridine or 14C leucine, respectively. RNA biosynthesis was more affected than DNA or protein biosynthesis in bacterial cells treated with caffeine. Treatment of Pba with caffeine for 336 h did not induce resistance to this compound. Caffeine application reduced disease symptoms caused by Dsol on chicory leaves, potato slices, and whole potato tubers. The data presented indicate caffeine as a potential tool for the control of diseases caused by plant-pathogenic bacteria, especially under storage conditions.
Źródło:
Acta Biochimica Polonica; 2015, 62, 3; 605-612
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation, identification and screening of Actinobacteria in volcanic soil of Deception Island (the Antarctic) for antimicrobial metabolites
Autorzy:
Cheah, Yoke−Kqueen
Lee, Learn−Han
Chieng, Cheng−Yun Catherine
Wong, Vui−Ling Clemente Michael
Powiązania:
https://bibliotekanauki.pl/articles/2049760.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
Actinobacteria
secondary metabolites
16S
diffusion assay
selective isolation media
Źródło:
Polish Polar Research; 2015, 1; 67-78
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Roślinne źródła półproduktów chemicznych i farmaceutycznych. Przykład trójterpenu z kasztanowca
Vegetable sources of semi-finished chemical and pharmaceutical products. Example of triterpene made from chestnut
Autorzy:
Grynkiewicz, G.
Gruza, M.
Jatczak, K
Powiązania:
https://bibliotekanauki.pl/articles/142123.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:
escyna
saponiny triterpenowe
biologicznie aktywne związki naturalne
metabolity wtórne roślin
leki pochodzenia roślinnego
aescin
triterpene saponins
biologically active natural compounds
secondary metabolites of plants
drugs of vegetable origin
Opis:
Biologicznie aktywne i medycznie użyteczne substancje naturalne pochodzenia roślinnego występują na ogół w wieloskładnikowych grupach związków o podobnych właściwościach chemicznych i fizykochemicznych, co znacznie utrudnia ich izolację, a zwłaszcza oczyszczanie. Lecznicze saponiny kasztanowca, tradycyjnie stosowane w medycynie w postaci złożonej mieszaniny (escyna), są przykładem sytuacji w której właściwości farmakologiczne indywidualnych komponentów. Zaprezentowano jedno z możliwych rozwiązań tego problemu na drodze transformacji chemicznych dostępnego surowca, które umożliwiają otrzymanie kluczowego pentacyklicznego triterpenu – protoescygeniny (PES) w stanie wysokiej czystości chemicznej, w procesie realizowanym w pilotowej skali technicznej. Wskazano możliwości zastosowania PES jako dogodnego półproduktu do syntez saponinomimetyków o zróżnicowanych typach struktury.
Biologically active and medically useful natural substances of vegetable origin usually occur in multi-component groups of compounds with similar chemical and physical properties, which significantly inhibit their isolation, and in particular their purification. Therapeutic chestnut saponins, traditionally used in medicine in the form of complex mixture (aescin), are the example of situation where pharmacological properties of individual components. One of the solutions to this issue was presented, based on chemical transformation of available raw material, allowing production of key pentacyclical triterpene - protoescigenin (PES) of high chemical purity, in the process implemented on pilot scale. Possibilities of using PES as a convenient semi-finished product fin the synthesis of mimetic saponins with varying structures.
Źródło:
Chemik; 2015, 69, 2; 75-80
0009-2886
Pojawia się w:
Chemik
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent developments in Neem (Azadirachta indica – A. Juss) derived antimicrobial constituents for control of human and plant diseases – a review
Autorzy:
Dohroo, Aradhana
Karnwal, Arun
Ghai, Manisha
Powiązania:
https://bibliotekanauki.pl/articles/1036421.pdf
Data publikacji:
2016
Wydawca:
Śląski Uniwersytet Medyczny w Katowicach
Tematy:
antiallergic
antidermatic
antifeedent
antifungal
anti-inflammatory activity
azadirachta indica
bacterial pathogens
neem
secondary metabolites
Opis:
Neem has immense biocontrol potential against a large number of pathogens causing various diseases in human beings and plants. The plant has maximum useful value in its leaves, bark, flowers and fruits than any other tree species. These values include antiallergic, antidermatic, antifeedent, antifungal and anti-inflammatory properties. Due to the vast activities of neem, it has become extremely valuable in making our ecosystem a green treasure. Neem leaves have been demonstrated to exhibit immuno-modulatory, anti-inflammatory, antiulcer, antimalarial properties. Neem tree plant parts contain a promising pest control substance which has found effective use against economically important agricultural pests. Neem plant products are easy to process by village level industries on the micro scale level and use by resource poor farmers in crop protection resulting thereby in income generation. This plant also has antioxidant properties and free radical scavenging potential in its different extracted solvents. The present review highlights the properties of neem against the pathogens of living organisms for environmental protection.
Źródło:
Annales Academiae Medicae Silesiensis; 2016, 70; 220-223
1734-025X
Pojawia się w:
Annales Academiae Medicae Silesiensis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application and properties of selected flavanones
Autorzy:
Błazińska, P.
Sykuła, A.
Powiązania:
https://bibliotekanauki.pl/articles/410506.pdf
Data publikacji:
2018
Wydawca:
Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
Tematy:
flavanones
flavonoids
secondary plant metabolites
biological activity
flawanony
flawonoidy
wtórne metabolity roślinne
aktywność biologiczna
Opis:
Flavanones, secondary plant metabolites, are one of the main group of flavanoids. They are widely spread in nature in many plants. The large diversity of structural structure of flavanones and controlled methods of modifying their molecules have a huge impact on biological activity. The present review will summarize the current knowledge about occurrence, obtaining by chemical synthesis, application and bioactivity of flavanones. Also, they are received from specific chemical synthesis. Flavanones have a great biological activity. Derivatives of flavanone have many different properties such as anti-inflammatory, anticancer, antioxidant, antimicrobial or hepatoprotective activities. These natural polyphenolic compounds are used in cosmetology, pharmacy and medicine. The demand and usage on them increases.
Źródło:
Biotechnology and Food Science; 2018, 82, 1; 61-74
2084-0136
2299-6818
Pojawia się w:
Biotechnology and Food Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The evaluation of the in-vitro antimicrobial activity of Alangium salvifolium (Linn)
Autorzy:
Khan, Mohammad Nadeem
Powiązania:
https://bibliotekanauki.pl/articles/1109620.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Alangium salvifolium
Antimicrobial activity
disc diffusion
secondary metabolites
soxhelt apparatus
Opis:
Finding healing power in plants is an ancient idea, and people of all continents and civilization have been using plants in one form or the other for poultices or as decoctions. Alangium salvifolium (Linn), family Alangeaceae, is a tree that grows in the wild throughout India. The plant has been used in the Indian traditional system of medicine for skin diseases (e.g. leucoderma), articular diseases, and anti-inflammation, anti-poisonous, anti-pyretic, and anti-emetic requirements. However, no scientific evidence is available regarding its antimicrobial activity. An investigation of Alangium salvifolium as an antimicrobial activity agent is the objective of our present study. The ATCC culture used in this study was collected from department of Microbiology, G.M.C., Bhopal (M.P.). Shade dried crude powder (200 grams) of seed of Alangium salvifolium was separately extracted with methanol in a soxhelt apparatus. The Antimicrobial activities were then studied by applying the Disc–Diffusion method. Our results indicate that the observed antimicrobial activity of the fraction appears to be due to unknown secondary metabolites in it. H.P.L.C. (high performance liquid chromatography) and chemical studies may, thus be useful in analyzing the presence of unknown secondary metabolites in the fractions.
Źródło:
World News of Natural Sciences; 2018, 20; 176-181
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Revealing and vetting of dynamic secondary metabolites position for isolation of antidermatophytic molecules from 20 aboriginal plants
Autorzy:
Singh, P. Shivakumar
Vidyasagar, G. M.
Powiązania:
https://bibliotekanauki.pl/articles/1076129.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aboriginal plants
antidermatophytic
dynamic secondary metabolites
phytochemical locations
vetting of secondary metabolites
Opis:
Aboriginal plants and their information clubbed with their potentiality. Majority of the secondary metabolites are the basic therapeutics. Usually these establishes in higher plants are gratifying all the time more noteworthy in drug scheming. In the current report, 100 different solvent extracts of 20 aboriginal plant species from Hyderabad Karnataka region were screened for their leading constituents of secondary metabolites. As of each one of plant species particular part of five successive extracts were particular for the revealing of impending metabolites. Intended for the vetting of secondary metabolites the criterion tests undertaken i.e., cluster wise for alkaloids dragendroff’s, tannin for ferric chloride, phenolics for lead acetate, glycoside for keller-killiani test, flavonoids for NaOH and saponins for foam test. The obvious ranges of secondary metabolites in the vein of non-polar to polar have been pragmatic. The utmost detection of alkaloids, tannins established at non-polar range whereas in middle polar flavonoids, tannins have been noticed. Glycosides and saponins entirely found at high polar. The upshot of the in attendance report will be very much constructive for isolation of diverse group of resulting metabolites in accumulate the time, chemicals, vigour utilization in active fragment drug design.
Źródło:
World Scientific News; 2019, 116; 25-35
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effectivity of metabolite secondary extract of bacteria associated with sea grass (Cymodocea rotundata) for Vibriosis treatment in tiger shrimp (Penaeus monodon)
Autorzy:
Lili, Walim
Maulana, Gusman
Astuty, Sri
Rosidah, Rosidah
Powiązania:
https://bibliotekanauki.pl/articles/1076652.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cymodocea rotundata
Penaeus monodon
Vibrio harveyi
bacteria association
secondary metabolites
survival rate
vibriosis
Opis:
The natural occurrence of the shrimp (Penaeus monodon Fabricius, 1798) and seagrass (Cymodocea rotundata Asch. & Schweinf.) is found in the area of Indian Ocean, Indonesia, for central Pacific. Vibriosis can cause death in larvae, juvenile and adult shrimp almost close to 100%. Antibacterial substances from secondary metabolites are produced by plants and animals to reduce the use of synthetic antibiotics. The purpose of this research was to determine the ability of secondary metabolites contained in the bacterial extract of the association of sea grass Cymodocea rotundata (isolate code BA.1) to treat vibriosis in tiger shrimp (Penaeus monodon). This research was conducted at the Laboratory of Integrated Biotechnology and Laboratory of Aquaculture, Fisheries and Marine Sciences Faculty, Universitas Padjadajaran, and at the Brackish and Southern Ocean Aquaculture Development Center Pangandaran, from June to September 2018. The research method used was experimental, with completely randomized design (CRD) consisting of five treatments with three replications including; control treatment (concentration of 0 mg·L–1), 150 mg.L–1, 300 mg·L–1, 450 mg·L–1 and 600 mg·L–1. Observations made include clinical symptoms (morphology, behavior) and survival rate. Clinical symptoms of infected tiger shrimp during the in vivo test were red spots on the abdomen and necrosis of some leg and tail segments. The behavior of tiger shrimp mostly shows less responsive movements to fish-feed on the first day, and showing responsive and active behavior on the fifth day. In vivo test results for 14 days showed that the highest survival rate of 51.67% was in case of the addition of antibacterial extracts of BA.1 with a concentration of 300 mg·L–1.
Źródło:
World News of Natural Sciences; 2019, 26; 96-115
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Total phenolic, flavonoid content and antioxidant capacity of stem bark, root, and leaves methanolic extract of Rhizophora mucronata Lam.
Autorzy:
Mulyani, Yeni
Syaputra, Nabil Dio
Dewi, Khoirunisa Candra
Lili, Walim
Agung, M. Untung Kurnia
Powiązania:
https://bibliotekanauki.pl/articles/1076655.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antioxidant
Flavonoid
Indramayu Regency
Phenolic
Rhizophora mucronata
Secondary metabolites
Opis:
The study was carried out to evaluate the phytochemical constituents, antioxidant activity and the content of total phenolic and flavonoid in the methanolic extract from stem bark, root, and leaves of Rhizophora mucronata from Karangsong, Indramayu Regency, West Java, Indonesia. The antioxidant activity was evaluated using 2,2-diphenyl-1-picrilhydrazyl (DPPH) assay. Total phenolic and flavonoid contents were determined according respectively to Folin-Ciocalteau method, and aluminium trichloride method. The methanol extract from stem bark of R. mucronata contained secondary metabolite such as phenolic, flavonoid, tannin and saponin. The stem bark of R. mucronata showed the highest phenolic and flavonoid content and possessed a higher antioxidant activity (IC50 84.80 µg·m/L) than that of root (IC50 166.95 µg·m/L) and leaves (IC50 90.51 µgmL1). Total phenolic and flavonoid content in the stem bark of R. mucronata were 131.91 ±1.7 mg gallic acid equivalents/g and 902 ±0.7 mg quercetin equivalents/g, respectively.
Źródło:
World News of Natural Sciences; 2019, 26; 118-127
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł

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