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Wyszukujesz frazę "shelf-life" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Characteristics of postharvest quality of chrysanthemum cut flowers under pretreatment with nitrogenous compounds
Autorzy:
Souri, M.K.
Goodarzizadeh, S.
Ahmadi, M.
Hatamian, M.
Powiązania:
https://bibliotekanauki.pl/articles/11865013.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
chrysanthemum
ornamental plant
flowering plant
cut flower
shelf life
postharvest quality
pretreatment
nitrogenous nutrient
ammonium
carotenoid
Opis:
This study was done using three nitrogenous compounds to evaluate their effects on postharvest characteristics of chrysanthemum (Chrysanthemum indicum) cut flowers. The study consisted of three separate and parallel experiments, in which ammonium sulfate, calcium nitrate and potassium nitrate were used in different concentrations of zero, 50, 100, 200 and 500 mg dm ‒3 N for pretreatment of stems for 6 hour before transferring to holding d-water solution. The results showed that petal ion leakage and leaf SPAD values were increased by increasing ammonium sulfate, but not calcium or potassium nitrate. Petal carotenoids were increased by pretreatment of ammonium sulfate and potassium nitrate. There was constant increase in water uptake by increasing the levels of calcium nitrate and potassium nitrate, while ammonium sulfate at high concentrations (200 and 500 mg dm ‒3 N) resulted in significant less water uptake compared to control. Ammonium sulfate in 50 and 100 mg dm ‒3 increased shelf life of pretreated stems, but higher concentrations significantly reduced cut flowers shelf life. Increasing concentrations of calcium nitrate and particularly potassium nitrate have led to prolongation of flower shelf life to 12 days compared to 6 days of control. The results indicate that pretreatment of chrysanthemum cut flowers with ammonium sulfate in rather low concentrations or with moderate to high concentrations of calcium nitrate or potassium nitrate can significantly improve shelf life and postharvest flower qualities.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 3; 83-90
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Peach antioxidant and phenolic activities influenced by the application of 1-methylcyclopropene (1-MCP) at post-harvest
Autorzy:
Shah, S.T.
Sajid, M.
Khan, N.U.
Rab, A.
Amin, N.U.
Arif, M.
Haleema, B.
Saeed, S.
Powiązania:
https://bibliotekanauki.pl/articles/12297475.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
peach tree
Prunus persica
fruit tree
antioxidant activity
phenolic compound activity
1-methylcyclopropene
catalase activity
fruit
fruit decay
storage durability
shelf life
Opis:
Early maturing peach (Prunus persica) cultivars can fetch good market value but face a lot of post-harvest problems that lead to the post-harvest losses. The 1-methylcyclopropene (1-MCP) can provide new insights into plant ethylene responses and extend the shelf life and quality of fruits. Therefore, fruits of peach cultivar ‘Early Grand’ were dipped in various concentrations of 1-MCP (0, 0.3, 0.6 and 0.9 µg l–1), stored for 40 days at 8 ±2°C with 50% relative humidity and analyzed the fruits for physicochemical attributes at 10 days interval. The highest concentration of 1-MCP at 0.9 µg l–1 significantly improved the activity of antioxidants, catalase, free radical scavenging assay and total phenols. However, the peach fruits treated with 1MCP at 0.6 µgL–1 was effective in retaining the ascorbic acid, lowering the weight loss and fruit decay. Therefore, peach fruits can be treated with 1-MCP (0.6 µg l–1) solution for prolonging its shelf life up to 40 days under low temperature.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 2; 71-85
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Postharvest quality of sweet cherry fruits as affected by bioregulators
Autorzy:
Kalajdžić, J.
Milić, B.
Petreš, M.
Stankov, A.
Grahovac, M.
Magazin, N.
Keserović, Z.
Powiązania:
https://bibliotekanauki.pl/articles/12305251.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
sweet cherry
Prunus avium
Regina cultivar
Summit cultivar
Kordia cultivar
fruit tree
fruit quality
postharvest quality
bioregulator
gibberellic acid
shelf life
weight loss
fruit storage
fruit decay
fruit rot
rot infestation
Opis:
During the cold storage of sweet cherry, severe losses can occur due to the water loss, phytopathogenic fungi and physiological disorders. The aim of this research was to assess the effects of treatments with NAA (α-naphthaleneacetic acid), BA (6-benzyladenine), and GA3 (gibberellic acid) on fruit quality at harvest and after 21 days of storage under two regimes, including 0°C, RH (relative humidity) 90% and 3°C, RH 70%, and after additional shelf life exposure. Sweet cherry cultivars – ‘Summit’, ‘Kordia’ and ‘Regina’ – were treated with bioregulators at the end of flowering. NAA significantly increased the fruit weight at harvest compared to the control in all cultivars assessed. BA stimulated the fruit growth in ‘Kordia’ and ‘Regina’, while it was ineffective in ‘Summit’. GA3 caused significant increase in fruit weight by 8.3% in ‘Kordia’ only. Moreover, BA and GA3 induced a higher firmness of fruits at harvest. Weight loss of fruits during storage at 0°C, RH 90%, was increased with NAA and reduced with GA3 in ‘Regina’ only. BA and GA3 reduced the weight loss of sweet cherry fruits stored at 3°C, RH 70%. Bioregulator treatments increased TA (titratable acidity) in fruits at harvest, while the effects on TA during storage were variable depending on the cultivar. ‘Summit’ had the highest sensitivity to storage fruit rot. BA and GA3 decreased the disease occurrence on fruits stored at 0°C in ‘Summit’ and ‘Kordia’.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 5; 189-199
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The assesment of ten apple cultivars and their susceptibility on bruising after storage and shelf-life of fruit treated with 1-MCP
Autorzy:
Lipa, T.
Szot, I.
Dobrzański,Jr., B.
Kapłan, M.
Powiązania:
https://bibliotekanauki.pl/articles/12690352.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
apple tree
Beni Shogun cultivar
Braeburn Hillwell cultivar
Elise cultivar
Gloster cultivar
Golden Delicious cultivar
Idared cultivar
Jonagold Decosta cultivar
Ligol cultivar
Mutsu cultivar
Sampion cultivar
plant cultivar
shelf-life
fruit storage
fruit firmness
impact test
bruising
1-Methylcyclopropene
Opis:
Control fruits and fruits subjected to 1-MCP application were placed in cold storage at 2°C, 90% r.h. for 18 weeks. The susceptibility of ten apple cultivars: ‘Beni Shogun’, ‘Braeburn Hillwell’, ‘Elise’, ‘Gloster’, ‘Golden Delicious’, ‘Idared’, ‘Jonagold Decosta’, ‘Ligol’, ‘Mutsu’ and ‘Šampion’ was tested using an impact test to obtain bruising of fruits. The analyses were performed on fruits immediately after harvest and four times after different period of cold storage (9 and 18 weeks) and shelf-life (7 days). The following analysis and characteristics of apples were determined: soluble solids content, dry matter content, acidity, fruit mass and size, and firmness. Impact test was carried out by dropping a glass ball with a mass of 25.68 g from height of 40 cm, due to which kinetic energy value of 0.1 J was obtained. Slight differences in acidity and soluble solid content were observed. On the other hand, stress noticed at firmness test was significantly higher for fruits treated with 1-MCP. It was also observed that firmness decreases after the shelf-life and after storage of fruit at room temperature. The ‘Beni Shogun’ apples fruits stored for 9 weeks are most susceptible to bruising (volume = 438.26 mm3). After cold storage, less susceptible cultivar was ‘Szampion’, for which the volume of fruit bruise was 145.62 mm3 only. After 9 weeks of cold storage, for most cultivars, there was no significant differences in bruise volume; however, the shelf-life had significant influence by differing the cultivars, and for all studied cultivars, the bruise volume was lower.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 6; 129-140
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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