scholarly journals Comparative assessment of apple fruit storability during storage in different modes of the cooled medium

2021 ◽  
Vol 39 ◽  
pp. 07002
Author(s):  
Yu.V. Plugatar ◽  
A.I. Sotnik ◽  
O.A. Denisova ◽  
R.D. Babina ◽  
N.N. Gorb
Keyword(s):  
Gas Dynamics ◽  
Apple Tree ◽  
Storage Period ◽  
Apple Fruit ◽  
Post Harvest ◽  
Gas Dynamic ◽  
Ethylene Inhibitor ◽  
The Crimea ◽  
Entire Storage Period ◽  
Fruit Storability

The article presents the research results of the effect of post-harvest treatment with Phytomag preparation of fruits of 21 apple tree varieties of domestic and foreign breeding on their storability and quality. The purpose of the research is to determine the effectiveness of the combined effect of such technological techniques as post-harvest fruit treatment with Phytomag preparation and their storage in conventional (CGD) and regulated (RGD) gas dynamics on the formation of quality and storability of apples grown in the Crimea. The data obtained showed that the treatment of fruits with an ethylene inhibitor Phytomag during storage in conventional and regulated gas dynamics reduces losses, depending on the variety, by 1.5-1.8 times. It is established that the processed fruits retain their original marketable appearance, have high quality components during the entire storage period and after opening the refrigerating chambers, selling the fruits and bringing them to the consumer. It is proved that in the conditions of the Crimea such varieties as Tavria, Krymskoye Zimnee, Krymskoye, Orion, Kimmeria, Brebern, Fuji, Idared, Pink Lady can be successfully stored in a conventional gas dynamic with post-harvest treatment with preparation inhibiting ethylene synthesis. The advantage of storage in regulated gas dynamic was shown by the varieties Aromat Kryma, Predgornoye, Golden Delicious, Crispin, Granny Smith, Glouster, Gala, Jonagold.

Effects of Bacillus velezensis on Fusarium avenaceum, a causal agent of post-harvest apple fruit rot

2020 ◽  
Author(s):  
Mladen Petres ◽  
Marta Loc ◽  
Mila Grahovac ◽  
Vera Stojsin ◽  
Dragana Budakov ◽  
...  
Keyword(s):  
Apple Fruit ◽  
Causal Agent ◽  
Fruit Rot ◽  
Fusarium Avenaceum ◽  
Bacillus Velezensis ◽  
Post Harvest

scholarly journals Effect of Harvest Date on Mango (Mangifera Indica L. Cultivar Osteen) Fruit’s Qualitative Development, Shelf Life and Consumer Acceptance

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 811
Author(s):  
Giuseppe Gianguzzi ◽  
Vittorio Farina ◽  
Paolo Inglese ◽  
Maria Gloria Lobo Rodrigo
Keyword(s):  
Management Practices ◽  
Mangifera Indica ◽  
Storage Period ◽  
Environmental Parameters ◽  
Internal Quality ◽  
Harvest Management ◽  
Post Harvest ◽  
Full Flowering ◽  
Constant Quality ◽  
Definition Of

The qualitative characteristics of mango fruits change throughout their development process and are also influenced by their duration. Harvesting at different times after the fruit set affects external and internal quality and the post-harvest behavior and management possibilities of the fruits. The objective of this study was to assess the evolution of the most important physicochemical and organoleptic parameters of cv. Osteen fruits concern the length of their stay on the plant and also to their post-harvest management. For this reason, fruits were harvested progressively in ten pickings. The study showed that mango fruits that are kept on the tree reach the best quality traits, corresponding to their physiological maturation. The length of the storage period needed to reach the consumption point varies greatly according to the harvesting moment and to the different environmental parameters, which also affect the organoleptic and physicochemical quality of the fruits. The number of days after full flowering were confirmed to be the primary information to consider when planning harvest with commercial use of the fruit, but interesting indications can be acquired through the definition of non-destructive (hardness, color) or destructive (dry matter) parameters. The data collected help improve mango fruit′s post-harvest management practices, to provide a product with constant quality and homogeneity to the consumer.

Influence of Individual Physical and Chemical Indices of Cognacs on their Qualitative Characteristics

2021 ◽  
pp. 34-37
Author(s):  
Екатерина Владимировна Ульянова ◽  
Дарья Владиславовна Андриевская
Keyword(s):  
Phenolic Compounds ◽  
Multicomponent System ◽  
Storage Period ◽  
Alcoholic Beverages ◽  
Long Term Storage ◽  
Organoleptic Characteristics ◽  
Group I ◽  
Calcium Cations ◽  
Entire Storage Period ◽  
Physical And Chemical

Стабильность (розливостойкость) в течение длительного времени - одна из важных составляющих качественных характеристик спиртных напитков виноградного происхождения, в том числе коньяков. Коньяк представляет собой сложную многокомпонентную систему, включающую более 800 различных соединений, в том числе фенольный комплекс древесины дуба и минеральные вещества. В процессе длительного хранения под воздействием ряда факторов эти соединения, вступая во взаимодействие друг с другом, могут образовывать различные виды помутнений, что влечет за собой потерю товарного вида готовой продукции. Целью настоящей работы стало исследование влияния отдельных показателей физико-химического состава обработанных коньяков на изменение их стабильности в процессе хранения. В качестве объектов исследования использовали образцы обработанных розливостойких коньяков отечественного производства, которые были разделены в зависимости от возраста на четыре группы: I группа - 3-летние, 4-летние и 5-летние (23 образца); II группа - выдержанные «КВ» и выдержанные высшего качества «КВВК» (15 образцов); III группа - старые «КС» (9 образцов); IV группа - очень старые «ОС» (7 образцов). Образцы хранили в течение 6 мес. при температуре 22…25 °С, в условиях, не допускающих попадания прямых солнечных лучей. В процессе хранения проводили мониторинг изменения физико-химических показателей, розливостойкости и органолептических характеристик исследуемых образцов с периодичностью 1 раз в месяц. Установлено, что на всем протяжении хранения физико-химические показатели исследованных образцов оставались в пределах нормы. Однако, в отдельных образцах, на определенном этапе эксперимента (после 2 мес. хранения) было отмечено появление осадка. Кроме того, по результатам определения склонности к различным видам помутнений был отмечен рост доли коньяков, нестойких к необратимым коллоидным и кристаллическим помутнениям в трех группах, кроме IV группы. Полученные данные по исследованию структуры осадков и результаты тестов на розливостойкость согласуются с характером изменений массовых концентраций катионов натрия и кальция, а также фенольных соединений. В целом полученные результаты проведенных исследований показали необходимость контроля массовой концентрации катионов натрия и кальция, а также фенольных соединений при прогнозировании розливостойкости коньяков. One of the important components of the quality characteristics of alcoholic beverages of grape origin, including cognacs, is their stability (bottling resistance) for a long time. Cognac is a complex multicomponent system that includes more than 800 different compounds, including the phenolic complex of oak wood and minerals. During long-term storage, under the influence of a number of factors, these compounds, interacting with each other, can form various types of turbidity, which entails the loss of the presentation of the finished product. The aim of this work was to study the effect of individual indicators of the physical and chemical composition of processed cognacs on the change in their stability during storage. As objects of research, we used samples of processed bottling-resistant cognacs of domestic production, which were divided, depending on age, into four groups: Group I - three-year-old, four-year-old and five-year-old (23 samples); Group II - matured «KV» and matured of the highest quality «KVVK» (15 samples); Group III - old «KS» (9 samples); IV group - very old «OS» (7 samples). The samples were stored for 6 months at a temperature of 22…25 °C, in conditions out of direct sunlight. During storage, changes in physical and chemical parameters, bottling resistance and organoleptic characteristics of the samples under study were monitored at a frequency of 1 time per month. It was found that during the entire storage period, the physicochemical indicators of the studied samples remained within the normal range. However, in some samples, at a certain stage of the experiment (after 2 months of storage), the appearance of a precipitate was noted. In addition, according to the results of determining the tendency to various types of cloudiness, an increase in the proportion of cognacs unstable to irreversible colloidal and crystalline cloudiness was noted in three groups, except for group IV. The data obtained on the study of the structure of sediments and the results of tests for pouring resistance are consistent with the nature of changes in the mass concentrations of sodium and calcium cations, as well as phenolic compounds. In general, the results of the studies carried out showed the need to control the mass concentration of sodium and calcium cations, as well as phenolic compounds when predicting the pouring resistance of cognacs.

Harvest and post-harvest apple fruit quality following applications of kaolin particle film in South African orchards

2006 ◽  
Vol 107 (3) ◽  
pp. 271-276 ◽  
Author(s):  
Stephanie J.E. Wand ◽  
Karen I. Theron ◽  
Johan Ackerman ◽  
Stephan J.S. Marais
Keyword(s):  
South African ◽  
Fruit Quality ◽  
Apple Fruit ◽  
Post Harvest

Phlyctaena vagabunda Desm., Pezicula malicorticis (Jackson) Nannf., and other fungi associated with apple twigs

1971 ◽  
Vol 11 (49) ◽  
pp. 254
Author(s):  
LJ Penrose
Keyword(s):  
Botrytis Cinerea ◽  
Apple Tree ◽  
New South ◽  
New South Wales ◽  
First Record ◽  
Apple Fruit ◽  
Source Of Infection ◽  
South Wales ◽  
Tree Pruning

The apple fruit rotting fungi Phlyctaena vagabunda, Pezicula malicorticis and Botrytis cinerea were isolated from apple tree pruning stubs or cankers. This report constitutes the first record of Pezicula malicorticis in New South Wales. It is suggested that pruning stubs provide the source of infection for fruit rots caused by these fungi.

scholarly journals Microbiological and physicochemical properties of commercial seal tampered refrigerated fruit juices

2016 ◽  
Vol 4 (1) ◽  
pp. 21
Author(s):  
Olusola Oluwole ◽  
Oluwole David ◽  
Christopher Falegan ◽  
Biodun Awojuyigbe ◽  
Olatunji Olajide
Keyword(s):  
Physicochemical Properties ◽  
Fruit Juice ◽  
Citrus Fruit ◽  
Storage Period ◽  
Apple Fruit ◽  
Fruit Juices ◽  
Pineapple Juice ◽  
Orange Fruit ◽  
Total Bacteria

<p>Microbial and physicochemical properties of seven branded, seal tampered refrigerated fruit juices were carried out in this study using standard methods. Coliform counts ranged from 2.079 to3.093 log<sub>10</sub>cfu/ml over the storage period with pineapple juice and citrus juice having the highest and least coliform count respectively. Total bacteria count in the juice ranged from 7.009 to 8.243 log<sub>10</sub>cfu/ml. Citrus fruit juice however had the highest staphylococcal count while pineapple juice had the least (2.344 to 3.881log<sub>10</sub>cfu/ml). Also, osmophilic yeast count ranged from 2.017 to 3.903log<sub>10</sub>cfu/ml, having the highest load in orange fruit juice and lowest load in citrus fruit juice. The pH of the juice samples ranged from 2.9 to 4.2 during the period of refrigeration. Conductivity was highest in apple fruit juice and lowest in orange nectar pulp fruit juice. The total dissolved solids ranged from 0.29 to 1.95 over storage and was recorded highest in apple juice and lowest in orange nectar pulp fruit juice. Turbidity ranged from 5.8-200. These results indicate a reduction in the quality of fruit juices after 5 days of opening and thus reveals that both spoilage and pathogenic organisms could proliferate in juices despite refrigeration.</p>

Inactivation of Salmonella enterica Serovar Senftenberg 775W in Liquid Whole Egg by Ultrahigh Pressure Homogenization

2008 ◽  
Vol 71 (11) ◽  
pp. 2283-2288 ◽  
Author(s):  
R. M. VELÁZQUEZ-ESTRADA ◽  
M. M. HERNÁNDEZ-HERRERO ◽  
T. LÓPEZ-PEDEMONTE ◽  
B. GUAMIS-LÓPEZ ◽  
A. X. ROIG-SAGUÉS
Keyword(s):  
Salmonella Enterica ◽  
Storage Period ◽  
Ultrahigh Pressure ◽  
Inlet Temperature ◽  
Initial Load ◽  
Yeast Extract Medium ◽  
Liquid Whole Egg ◽  
Entire Storage Period ◽  
Thermal Pasteurization ◽  
Whole Egg

Two batches of samples of liquid whole egg were inoculated with a load of approximately 3 and 7 log CFU/ml, respectively, of Salmonella enterica serovar Senftenberg 775W and submitted to different ultrahigh pressure homogenization (UHPH) treatments at 150, 200, and 250 MPa. The inlet temperature of the samples was 6°C. Counts of viable and injured Salmonella cells were obtained 2 h after the UHPH treatments and after 5, 10, 15, and 20 days of storage at 4°C. The level of pressure applied influenced the lethality attained significantly (P &lt; 0.05). In the samples with an initial load of approximately 7 log CFU/ml, the highest lethality value of 3.2 log CFU/ml was obtained at 250 MPa, and it is similar to those values reported in other surveys for thermal pasteurization with this same Salmonella strain. When the initial load was approximately 3 log CFU/ml, total inactivation was apparently obtained after the 250-MPa treatment (2.7 log CFU/ml). After 10 days of storage at 4°C, Salmonella counts decreased in UHPH-treated samples, and colonies were not observed in tryptone soy agar and yeast extract medium. Nevertheless, presence of viable Salmonella cells was detected with the VIDAS Salmonella immunoassay method during the entire storage period. These results encourage further investigation of UHPH processing of liquid whole egg, assaying the possibility of using higher pressures and fluid inlet temperatures.

Field infestation of cowpea (Vigna unguiculata) pods by beetles of the families Bruchidae and Curculionidae in Northern Nigeria

1961 ◽  
Vol 52 (4) ◽  
pp. 635-645 ◽  
Author(s):  
P. F. Prevett
Keyword(s):  
Callosobruchus Maculatus ◽  
Storage Period ◽  
Northern Nigeria ◽  
Field Methods ◽  
Post Harvest ◽  
Large Numbers ◽  
Normal Manner ◽  
High Level ◽  
Light Green ◽  
Final Harvest

SummaryAn account is given of a study of infestation of cowpea pods in the field in Northern Nigeria by the weevil, Piezotrachelus varius (Wagn.), and the Bruchids, Bruchidius atrolineatus (Pic) and Callosobruchus maculatus (F.). Oviposition by Bruchids did not commence until the pods were fully formed and light green in colour, whilst infestation by P. varius originated in the young pods. Observations indicated that a high level of parasitism of Bruchid eggs occurred, but that the majority of Hymenopterous parasites emerging from within the pods were related to P. varius.When pods were harvested at regular intervals, large numbers of P. varius emerged from the early harvests only. B. atrolineatus was the predominant Bruchid species emerging, particularly from early harvests. In the case of a single final harvest of pods, large numbers of P. varius, and a higher level of infestation by B. atrolineatus than in pods collected at regular intervals, were recorded.Shelling of four batches of pods indicated a mean of 11 per cent, of seeds attacked by Bruchids in the case of single final harvests, and a mean of only 3·5 per cent, in the case of regular harvests as pods became dry. It is concluded that a considerable improvement in quality would result from an adoption of the latter method by farmers, provided that some method of control in respect of the harvested pods were introduced.From the observations made it is concluded that P. varius is a true field pest, B. atrolineatus primarily a field pest able to continue infestation in store to a very limited extent, and C. maculatus primarily a store pest able to commence its infestation in pods in the field and to build up in numbers rapidly during the immediate post-harvest storage period.The normal manner of cultivation precludes the use of field methods of control at oviposition peaks but observations suggest that elimination of secondary hosts of P. varius and B. atrolineatus might be worthwhile. A reduction in oviposition by C. maculatus by treatment of stored cowpeas in growing areas, and treatment of pods during the immediate post-harvest storage period, should considerably reduce the level of infestation by this species.

Response of cultivars, picking dates and storage period on quality characteristics of imitation cherry of Karonda (Carissa carandas L.) fruits

2016 ◽  
Vol 36 (3) ◽  
Author(s):  
K. K. Mishra ◽  
Suneeta Singh ◽  
Omveer Singh
Keyword(s):  
Ascorbic Acid ◽  
Fruit Set ◽  
Storage Period ◽  
Titratable Acidity ◽  
Reducing Sugar ◽  
Total Sugar ◽  
Enzymatic Browning ◽  
Overall Acceptability ◽  
Entire Storage Period ◽  
Colour Appearance

Imitation cherry of Karonda was prepared from three cultivars viz., Pant Manohar, Pant Sudarshan and Pant Suvarna picked at 40, 60 and 80 days after fruit set. The storability of imitation cherry was evaluated at ambient room temperature for a period of nine months. The imitation cherry prepared at 80 days after fruit set showed maximum TSS (77.83 %), reducing sugar (42.21 %), non-reducing sugar (28.21 %), total sugar, ascorbic acid (6.69 mg/100g), phosphorus (3.55 mg/100g), calcium (1.23 mg/100g), iron (3.72 mg/100g), non-enzymatic browning, colour, appearance, aroma, taste and overall acceptability. Gradual reduction in TSS, reducing sugar, total sugar, titratable acidity, colour, appearance, aroma, taste, texture and overall acceptability were observed during the nine months storage period. However, non-reducing sugar, ascorbic acid and non-enzymatic browning were increased with the increase in storage period. Overall acceptability of the product ranged from 8.15 to 8.43 on 9 point hedonic scale at various intervals up to 9 months of storage. There was no yeast and mould growth being observed during the entire storage period. Imitation cherry prepared from Pant Suvarna at 80 days interval after fruit set proved significantly best in quality because of its higher nutritional and sensory characters.

scholarly journals Effects of different soil amendments and age of transplant on the post-harvest quality and shelf life of sweet pepper (Capsicum annuum) fruits

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Isaac Addo ◽  
Kwadwo Gyasi Santo ◽  
Abdul Aziz Khalid ◽  
Emmanuel Ackah
Keyword(s):  
Weight Loss ◽  
Shelf Life ◽  
Block Design ◽  
Poultry Manure ◽  
Storage Period ◽  
Sweet Pepper ◽  
Fruit Weight ◽  
Post Harvest ◽  
Significant Difference ◽  
Quality And Shelf Life

Abstract Background Two separate experiments were conducted in the minor season from September to November, 2019 and major season from March to May, 2020 to determining the type of soil amendment and transplanting age that can best improve the post-harvest quality and shelf life of sweet pepper fruits at Benso oil palm plantation of Adum Banso Estate in the Mpohor District of the Western Region of Ghana. The experiments were conducted as a 4 × 2 factorial, arranged in a Randomized Complete Block Design. Four fertilizer treatments including no fertilizer (control), 10 tons/ha of poultry manure, 300 kg/ha of NPK 15-15-15 and 5 t/ha of poultry manure + 150 kg/ha of NPK 15-15-15 and two ages of transplants including 6-week-old seedlings and 7-week-old seedlings were applied during the cultivation periods and were later evaluated of their effects on the post-harvest quality and shelf life of harvested fruits after a two-weeks storage period. Data collected on weight loss, shrinkage, decayed fruits and shelf life of harvested fruits were subjected to analysis of variance using the Genstat Statistical package. The least significant difference criterion was used to separate treatment means at 5% probability. Results Post-harvest qualities of sweet pepper fruits were not significantly influenced by age of transplant throughout the study. Fertilizer application generally increased percentage fruit weight loss, fruit shrinkage, fruit decay and reduced shelf life of sweet pepper fruits in the major season. Sole application of poultry manure mostly enhanced post-harvest quality of sweet pepper fruits in the minor rainy season, but fruit shelf life was improved if no fertilizer was applied. Application of a combination of poultry manure and NPK 15-15-15 to 6-week-old transplants gave relatively low fruit weight loss and shrinkage values. Generally, fruit quality and shelf life were enhanced in 6-week-old transplants treated with no fertilizer. Conclusions The use of poultry manure alone should be encouraged to probably increase yield while improving the quality and shelf life of harvested sweet pepper fruits. Transplanting of 6-week-old seedlings is also encouraged for quality harvested fruits and extended shelf life.

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