scholarly journals Effect of chitosan coatings on the physicochemical characteristics of Eksotika II papaya (Carica papaya L.) fruit during cold storage

2011 ◽  
Vol 124 (2) ◽  
pp. 620-626 ◽  
Author(s):  
Asgar Ali ◽  
Mahmud Tengku Muda Muhammad ◽  
Kamaruzaman Sijam ◽  
Yasmeen Siddiqui
Keyword(s):  
Cold Storage ◽  
Carica Papaya ◽  
Physicochemical Characteristics

scholarly journals Postharvest longevity of 'BRS Vitória' seedless grapes subjected to cold storage and acibenzolar-S-methyl application

2018 ◽  
Vol 53 (7) ◽  
pp. 809-814 ◽  
Author(s):  
Ronan Carlos Colombo ◽  
Reginaldo Teodoro de Souza ◽  
Maria Aparecida da Cruz ◽  
Deived Uilian de Carvalho ◽  
Renata Koyama ◽  
...  
Keyword(s):  
Shelf Life ◽  
Cold Storage ◽  
Storage Period ◽  
Physicochemical Characteristics ◽  
Gray Mold ◽  
Physicochemical Analysis ◽  
Postharvest Quality ◽  
Randomized Design ◽  
Postharvest Longevity ◽  
Cold Chamber

Abstract: The objective of this work was to evaluate cold storage periods and postharvest longevity of the seedless table grape 'BRS Vitória' subjected to the application of the disease-resistance inducer acibenzolar-S-methyl (ASM). Bunches were treated or not with 1% ASM, placed individually in plastic clamshell trays and stored in a cold chamber at 2±1ºC, at a high relative humidity, for three periods (30, 45, and 60 days), followed by a 5-day period of shelf life in plastic clamshells, at 22±2ºC. After each storage period, gray mold (Botrytis cinerea) incidence was evaluated, and the physicochemical analysis was performed. A completely randomized design, with four replicates, was used in two 2x3 factorial arrangements: one evaluating ASM application and cold storage periods; and another, ASM and cold storage + shelf-life periods. ASM did not change the physicochemical characteristics of the bunches, and the incidence of gray mold was lower than 1% in all treatments. Water loss from bunches increased with storage periods. Even without ASM application, 'BRS Vitória' grape can preserve its postharvest quality for up to 60 days of cold storage, plus five days of shelf life in plastic clamshells.

scholarly journals Organic Management of ‘Maradol’ Papaya (Carica papaya L.) Crops: Effects on the Sensorial and Physicochemical Characteristics of Fruits

Agriculture ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 234
Author(s):  
Perla Ruiz-Coutiño ◽  
Lourdes Adriano-Anaya ◽  
Miguel Salvador-Figueroa ◽  
Didiana Gálvez-López ◽  
Raymundo Rosas-Quijano ◽  
...  
Keyword(s):  
Carica Papaya ◽  
Management Practices ◽  
Physicochemical Characteristics ◽  
Primary Objective ◽  
Additional Treatment ◽  
Soluble Solids ◽  
Organic Management ◽  
Conventional Agriculture ◽  
Medicinal Value ◽  
Organically Managed

The Maradol Papaya (Carica papaya L.) is a fleshy berry produced in the tropics; it is highly appreciated around the world for its high nutritional and medicinal value, as well as its attractive sensory properties. Evaluating the physiological, chemical, and sensory characteristics of ‘Maradol’ papaya fruits from organically managed crops was the primary objective of this study. Four treatments (T1–T4) were evaluated, all of which were fertilized using the same organic management practices. In addition, plant extracts were applied regularly to T1–T3 as pest control, and single (T2) and double (T1) rows of trap plants (roselle) were used. T4 did not receive additional treatment. Fruits under conventional agriculture outside the experimental site were included for comparative purposes (controls). The organic management of the plants did not negatively influence the physiological traits of postharvest ripening. Among the organic treatments, T1 fruits had the highest total soluble solids, vitamin C, and reducing sugars, as well as the lowest weight loss, which significantly improved the quality of the fruit, compared to conventionally produced fruits. In addition, sensory evaluation performed by trained judges, revealed that fruits from the organically managed plots (T1–T4) were the softest and juiciest, and had a higher score in fruit and papaya aroma, in contrast to the conventionally produced fruits, which turned out to be sour, more astringent, and less soft and juicy. The results show that the exclusively organic management of ‘Maradol’ papaya crops improves several post-harvest traits of the fruits, compared to those that can be purchased commercially and are conventionally grown.

scholarly journals Effects of 1-Methylcyclopropene Treatment on Physicochemical Attributes of “Hai Jiang” Yardlong Bean during Cold Storage

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Zitao Jiang ◽  
Jiaoke Zeng ◽  
Yunke Zheng ◽  
Hong Tang ◽  
Wen Li
Keyword(s):  
Weight Loss ◽  
Superoxide Dismutase ◽  
Cold Storage ◽  
Skin Color ◽  
Storage Time ◽  
Physicochemical Characteristics ◽  
Mda Content ◽  
Nonclimacteric Fruit ◽  
Yardlong Bean ◽  
Postharvest Senescence

The yardlong bean belongs to nonclimacteric fruit. The objective of this study was to investigate the effects of 1-methylcyclopropene (1-MCP) treatment on physicochemical characteristics of yardlong beans during cold storage. Freshly harvested yardlong beans were treated with different concentrations of 1-MCP (0, 0.75, 1.0, 1.25, and 1.5 μL ·L−1) and stored at 8°C for 21 days. The results showed that, compared with the control, the decrease in firmness and good fruit rate and the degradation of chlorophyll and vitamin C (Vc) content could be inhibited, change in skin color could be delayed, activities of superoxide dismutase (SOD) and peroxidase (POD) could be improved, and the increasing of malondialdehyde (MDA) content and weight loss could be inhibited significantly by 1-MCP treatments. Of the different concentrations of 1-MCP, 1.0 μL·L−1 proved to have the best preservative effects, extending storage time and delaying ripening and senescence of yardlong beans. These results indicated that 1-MCP treatment provided an effective method for delaying the postharvest senescence of fresh yardlong beans.

scholarly journals Physicochemical characteristics and phytochemical contents of peach trees (Prunus persica (L.) Batsch) grafted on different rootstocks during cold storage

2018 ◽  
Vol 12 (09) ◽  
pp. 1492-1498
Author(s):  
Caroline Farias Barreto ◽  
◽  
Marines Batalha Moreno Kirinus ◽  
Pricila Santos da Silva ◽  
Cesar Valmor Rombaldi ◽  
...  
Keyword(s):  
Cold Storage ◽  
Prunus Persica ◽  
Physicochemical Characteristics ◽  
Peach Trees ◽  
Phytochemical Contents

scholarly journals Camu-camu harvested with reddish-green peel preserves its physicochemical characteristics and antioxidant compounds during cold storage

2019 ◽  
Vol 22 ◽  
Author(s):  
Rafaela Rebessi Zillo ◽  
Paula Porrelli Moreira da Silva ◽  
Marta Helena Fillet Spoto ◽  
José Guilherme Prado Martin
Keyword(s):  
Ascorbic Acid ◽  
Shelf Life ◽  
Cold Storage ◽  
Radical Scavenging ◽  
Physicochemical Characteristics ◽  
Total Phenolic ◽  
Antioxidant Compounds ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Ripening Stages

Abstract Camu-camu (Myrciaria dubia), a fruit native to the Brazilian Amazon, is considered a source of antioxidant compounds. Due to its high perishability, postharvest studies aimed at increasing its shelf life are required. The aim of this study was to evaluate the influence of harvesting time on the conservation of the physicochemical characteristics and antioxidant compounds of camu-camu during cold storage. The fruits, harvested at different ripening stages (red and reddish-green peel), were stored in polyethylene terephthalate trays at 15 °C and 90% relative humidity. The following analyses were carried out on days 1, 2, 5, 7, 9 and 13 after harvest: luminosity, hue angle and chromaticity, pH, soluble solids content, titratable acidity, SS/TA, ascorbic acid content, total phenolic content, total anthocyanin content and free-radical-scavenging activity by the 1,1-diphenyl-2-picryl-hydrazil method. The data were submitted to a multivariate analysis. The fruits harvested at different ripening stages showed different postharvest characteristics, highlighting the parameters of colour, flavour and antioxidants. The reddish-green fruits, despite their low concentration of anthocyanins during storage, showed high levels of phenolic compounds, ascorbic acid and antioxidant activity, which were maintained for nine days of cold storage. Due to the flavour characteristics and antioxidant compounds, it is recommended that camu-camu be harvested in the reddish-green maturation stage to extend its shelf life.

scholarly journals Changes in physicochemical characteristics and oxidative stability of pre- and post-rigor frozen chicken muscles during cold storage

2019 ◽  
Vol 56 (11) ◽  
pp. 4809-4816 ◽  
Author(s):  
Nahar Sabikun ◽  
Allah Bakhsh ◽  
Ishamri Ismail ◽  
Young-Hwa Hwang ◽  
M. Shafiur Rahman ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
Cold Storage ◽  
Physicochemical Characteristics ◽  
Chicken Muscles

scholarly journals Effect of Chitosan and Fish Gelatin Coatings on Preventing the Deterioration and Preserving the Quality of Fresh-Cut Apples

Molecules ◽  
2019 ◽  
Vol 24 (10) ◽  
pp. 2008
Author(s):  
Yung-Shin Shyu ◽  
Guan-Wen Chen ◽  
Shao-Ching Chiang ◽  
Wen-Chieh Sung
Keyword(s):  
Cold Storage ◽  
Microbial Growth ◽  
Physicochemical Characteristics ◽  
Effective Control ◽  
Fish Gelatin ◽  
Chitosan Coating ◽  
Hue Angle ◽  
Malus Pumila Mill ◽  
L Value ◽  
Fresh Cut

The effect of fish gelatin and chitosan coatings on the physicochemical characteristics of fresh-cut apples (Malus pumila Mill.), stored at 5 °C and 22 °C, was investigated. Chitosan provided an effective control for microbial growth, maintained firmness during 4 days of storage at room temperature (22 °C), and 12 days at refrigerator (5 °C). The results indicated that chitosan coating caused a significant decrease (p < 0.05) in the L* value of cube color of cut apples. Fish gelatin–chitosan coatings mitigated the L* value and decrease in hue angle of the cut apple samples, at cold storage. Experimental results showed that fish gelatin–chitosan and chitosan coatings, can be used to mitigate the formation of vitamin C, due to respiration, microbial growth, and weight loss at cold storage. Fish gelatin–chitosan coating might be a better combination for maintaining appearance and extending shelf-life of cut apples, compared to only chitosan coatings.

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