scholarly journals ЛЕЖКІСТЬ ПЛОДІВ БАКЛАЖАНА ЗАЛЕЖНО ВІД УМОВ ЗБЕРІГАННЯ

2012 ◽  
pp. 74-79
Author(s):  
Є. В. Зінченко
Keyword(s):  
Chemical Compound ◽  
Storage Conditions ◽  
Standard Product ◽  
Egg Plant ◽  
Natural Losses ◽  
Product Output ◽  
And Storage

Наведено результати досліджень щодо лежкостіплодів баклажана різних підвидів та сортотипів,що зберігалися в різних умовах і видах упаковки.Виявлено умови зберігання баклажана, що забезпе-чують найменші природні втрати маси плодів табільший вихід стандартної продукції. Вивченовплив способів зберігання плодів баклажана різнихпідвидів та сортотипів на їх хімічний склад післякожного терміну зберігання. Доведено ефектив-ність використання різних видів упаковки та умовзберігання для конкретного дослідного сорту. The brought results over of safety garden-stuffs of eggplantof different subspecies’s and type of sort, that keptunder various conditions and types of container. Foundout the optimal terms of storage of egg-plant with theminimum natural losses of mass of garden-stuffs and tothe greater standard product output. Ways of storage offruits of an eggplant of different subspecies and type ofsort, and their influence on a chemical compound aftereach period of storage are studied. Efficiency of use ofdifferent kinds of packing and storage conditions for aconcrete investigated grade is proved.

scholarly journals CHANGES OF INDEXES QUALITY OF MUSHROOMS DEPEND ON DURATION AND STORAGE CONDITIONS

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
S. Gunko ◽  
O. Trynchuk ◽  
H. Podpriatov ◽  
O. Naumenko ◽  
N. Yashchuk ◽  
...  
Keyword(s):  
Storage Conditions ◽  
Chemical Parameters ◽  
Protein Nitrogen ◽  
Chemical Indicators ◽  
Before And After ◽  
Quality Of Products ◽  
Natural Losses ◽  
And Storage ◽  
The Waves

The results of investigations of the effect of duration and conditions of storage on changes in the quality of mushrooms of the Agaricus Bisporus (AB) of strain IBK-25 and Pleurotus Ostreatus (PO) of strain NK-35 were presented in the article. Changes in the quality of mushrooms were determined before and after 6 days of storage by organoleptic, marketability and chemical parameters. The temperatures of storage were minus 1, 1, 3 and 5°C and relative humidity – 90±1%. The quality of products was evaluated by appearance, magnitude of natural losses (NL), output of marketability mushrooms and chemical parameters (dry matter (DM), protein nitrogen (PN), ascorbic acid (AA)). The results of visual observations during 6 days were indicated that better temperature of storage for mushrooms was 1°C. AB at a temperature of minus 1°C frozen and after defrosting was not suitable for utilize, and the PO restored own structure and after sorting them could be processed. The quantity of marketability AB during 6 days of storage at a temperature of 3°C decreased by 3.4 and 3.5%, PO – by 3.4 and 3.8%, compared with the control; at 5°C – in AB by 19.2 and 20.6% and in the PO by 12.4 and 13.1%, respectively, depending on the waves of fruiting. NL of PO after 6 days of storage at 5°C were greater than AB as a result larger evaporation area, but they had smaller quantity of non- marketability mushrooms 8.7–9.9% against 17.7–19.3%. The output of marketability products at a temperature of 1°C in both species of mushrooms was approximately the same but at the temperature of 5°C in PO it was higher on 9.0-9.4%. Term of storage of AB during 6 days had effect on the changed quantity of some chemical substances: the amount of DM decreased (by 5.3-17.4%), AA (by 7.4-25.9%) but almost did not change the quantity of PN. Similar trends were observed for PO. Thus, as a result of the conducted researches we recommend as an optimum temperature regime of storage for mushrooms of AB and PO 1°С because it provides preservation of their organoleptic, marketability and chemical indicators.

Barley seed storage under controlled conditions

2019 ◽  
pp. 140-150 ◽  
Author(s):  
O. A. Zadorozhna ◽  
T. P. Shyianova ◽  
M.Yu. Skorokhodov
Keyword(s):  
Hordeum Vulgare ◽  
Moisture Content ◽  
Spring Barley ◽  
Seed Storage ◽  
Growing Season ◽  
Storage Conditions ◽  
Meteorological Conditions ◽  
Hordeum Vulgare L ◽  
The Relationship ◽  
And Storage

Seed longevity of 76 spring barley gene pool samples (Hordeum vulgare L. subsp. distichon, convar. distichon: 56 nutans Schubl., two deficience (Steud.) Koern., two erectum Rode ex Shuebl., two medicum Koern.; convar. nudum (L.) A.Trof.: one nudum L. та subsp. vulgare: convar. vulgare: nine pallidum Ser., three rikotense Regel.; convar. coeleste (L.) A.Trof.: one coeleste (L.) A.Trof.) from 26 countries, 11 years and four places of reproduction was analyzed. Seeds with 5–8% moisture content were stored in chamber with unregulated and 4oC temperature. The possibility of seed storage under these conditions for at least 10 years without significant changes in germination has been established. The importance of meteorological conditions in the formation and ripening of seeds for their longevity is confirmed. The relationship between the decrease of barley seeds longevity and storage conditions, amount of rainfall, temperature regime during the growing season of plants is discussed.

Comparison of Procedures for Isolation of Monoterpene Hydrocarbons from Fresh Needles of Picea abies and Picea omorica

2000 ◽  
Vol 65 (7) ◽  
pp. 1073-1081 ◽  
Author(s):  
Valerie Holubová ◽  
Iva Chvílíčková ◽  
Vlastimil Kubáň
Keyword(s):  
Picea Abies ◽  
Liquid Nitrogen ◽  
Steam Distillation ◽  
Extraction Efficiency ◽  
Total Content ◽  
Storage Conditions ◽  
Fresh Weight ◽  
Hexane Extraction ◽  
Monoterpene Hydrocarbons ◽  
And Storage

Extraction procedures (steam distillation, supercritical fluid extraction and solvent extraction) for isolation of monoterpene hydrocarbons from fresh needles of Picea abies and Picea omorica were optimised. The procedures were compared with the aim of minimizing consumption of needles and improving the extraction efficiency and repeatability. An influence of homogenisation procedures and storage conditions (liquid nitrogen, -18 and 4 °C) on the total content and composition of essential oils was studied. Cryogenic grinding (liquid nitrogen) combined with the extraction with cold hexane (extraction time 2 h) and subsequent GC-MS determination in freshly homogenised needles gives the best results (1.5-4 times better extraction efficiency, RSD < 10% for P. abies and < 25% for P. omorica). Limits of detections (3 S/N) for individual monoterpene hydrocarbons from units to tens of ng/g and recoveries 97.2-101.4% were found in fresh needles (calculated to fresh weight). While cooling to 4 °C is unacceptable, freezing at -18 °C for the period of 18 days in the dark gives also good results.

scholarly journals Changes of Physicochemical Properties of Starch Syrups Recommended for Winter Feeding of Honeybees during Storage

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 374
Author(s):  
Teresa Szczęsna ◽  
Ewa Waś ◽  
Piotr Semkiw ◽  
Piotr Skubida ◽  
Katarzyna Jaśkiewicz ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Physicochemical Properties ◽  
Physicochemical Parameters ◽  
Storage Temperature ◽  
Storage Conditions ◽  
Different Temperatures ◽  
And Storage ◽  
Bee Colonies ◽  
Temperature Time ◽  
Winter Feeding

The aim of this study was to determine the influence of storage temperature and time on physicochemical parameters of starch syrups recommended for the winter feeding of bee colonies. The studies included commercially available three starch syrups and an inverted saccharose syrup that were stored at different temperatures: ca. 20 °C, 10–14 °C, and ca. 4 °C. Physicochemical parameters of fresh syrups (immediately after purchase) and syrups after 3, 6, 9, 12, 15, 18, 21, and 24 months of storage at the abovementioned temperatures were measured. It was observed that the rate of unfavorable changes in chemical composition of starch syrups and the inverted saccharose syrup, mainly the changes in the 5-hydroxymethylfurfural (HMF) content, depended on the type of a syrup and storage conditions (temperature, time). Properties of tested starch syrups intended for winter feeding of bees stored at ca. 20 °C maintained unchanged for up to 6 months, whereas the same syrups stored at lower temperatures (10–14 °C) maintained unchanged physicochemical parameters for about 12 months. In higher temperatures, the HMF content increased. To date, the influence of this compound on bees has not been thoroughly investigated.

scholarly journals Stabilizing Grain Yield and Nutrition Quality in Purple Rice Varieties by Management of Planting Elevation and Storage Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 83
Author(s):  
Supapohn Yamuangmorn ◽  
Suchada Jumrus ◽  
Sansanee Jamjod ◽  
Narit Yimyam ◽  
Chanakan Prom-u-Thai
Keyword(s):  
Grain Yield ◽  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Brown Rice ◽  
Storage Conditions ◽  
Harvest Management ◽  
Rice Varieties ◽  
Opposite Pattern ◽  
Dpph Activity ◽  
And Storage

Purple rice has become an interesting source of nutritional value among healthy cereal grains. The appropriate cultivation together with post-harvest management would directly benefit farmers and consumers. This study aimed (i) to determine the yield, grain nutritional quality, and antioxidant capacity of purple rice varieties grown at lowland and highland elevations, and (ii) to evaluate the effects of storage conditions on the stability of the rice nutritional value during six months of storage. The high anthocyanin PES variety grown in the lowlands had a higher grain yield than the plants grown in the highlands, but grain anthocyanin concentration had the opposite pattern. In the high antioxidant capacity KAK variety, grain yield and DPPH activity were not significantly different between plants grown at the two elevations. The storage of brown rice and vacuum-sealed packages were both found to preserve greater anthocyanin concentrations in PES, but there was no effect on the DPPH activity of KAK. The grain properties were not significantly different between storage at 4 °C and room temperature. This study suggests that the optimal cultivation practices and storage conditions would result in the higher yield and grain quality of purple rice varieties.

scholarly journals α-Amylase action on starch in chickpea flour following hydrothermal processing and different drying, cooling and storage conditions

2021 ◽  
Vol 259 ◽  
pp. 117738
Author(s):  
Cathrina H. Edwards ◽  
Amalia S. Veerabahu ◽  
A. James Mason ◽  
Peter J. Butterworth ◽  
Peter R. Ellis
Keyword(s):  
Storage Conditions ◽  
Hydrothermal Processing ◽  
Chickpea Flour ◽  
And Storage

scholarly journals Eggs viability of Aedes aegypti Linnaeus (Diptera, Culicidae) under different environmental and storage conditions in Manaus, Amazonas, Brazil

2016 ◽  
Vol 77 (2) ◽  
pp. 396-401 ◽  
Author(s):  
V. C. Soares-Pinheiro ◽  
W. Dasso-Pinheiro ◽  
J. M. Trindade-Bezerra ◽  
W. P. Tadei
Keyword(s):  
Aedes Aegypti ◽  
Storage Conditions ◽  
Amazon Region ◽  
Storage Site ◽  
Egg Hatching ◽  
Plastic Bag ◽  
The Mean ◽  
And Storage ◽  
Storage Type ◽  
Hatching Rates

Abstract The viability of Aedes aegypti eggs was assessed in the Amazon region. The eggs were maintained under different conditions: indoors (insectarium) and outdoors (natural environment), as well as in different storage types (plastic cup, paper envelope, plastic bag) for different days. Egg viability was measured as the mean of hatchings observed from egg-bearing sheets of filter paper immersed in water, using three sheets randomly selected from each storage type and at both sites. There were significant differences in the viability of Ae. aegypti eggs with respect to the location (F=30.40; DF=1; P<0.0001), storage type (F=17.66; DF=2; P<0.0001), and time of storage (F=49.56; DF=9; P<0.0001). The interaction between storage site versus storage type was also significant (F=15.96; DF=2; P<0.0001). A higher hatching mean was observed for the eggs kept in the insectarium than for those outdoors (32.38 versus 7.46). Hatching rates of egg batches stored for 12 to 61 days ranged between 84 and 90%. A reduction was observed between 89 and 118 days, with values of 63 and 48%, respectively. With respect to type of storage, mean egg hatching was higher for the eggs in plastic cups (44.46). It was concluded that the viability of the eggs of Ae. aegypti in the Amazon region remains high up to 4 months, after which it declines drastically, although in this study hatching occurred for up to 8 months in very low percentages.

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