Quality assessment of lemon (Citrus aurantifolia, swingle) coated with self-healed multilayer films based on chitosan/carboxymethyl cellulose under cold storage conditions

The objective of this study was to evaluate the effect of controlled atmosphere (CA) on quality preservation of ‘Laetitia’ plums, mainly on internal breakdown, in order to determine the best CA storage conditions. Two experiments were carried out one in 2010, and another in 2011. In 2010, besides cold storage (CS; 21.0 kPa O2 + 0.03 kPa CO2), the fruits were stored under the following CA conditions (kPa O2+kPa CO2): 1+3, 1+5, 2+5, 2+10, and 11+10. In 2011, the fruits were stored under CS and CA of 1+0, 1+1, 2+1, and 2+2. The fruit stored under different CA conditions had lower respiration and ethylene production, better preservation of flesh firmness, texture and titratable acidity, lower skin red color, and lower incidence of skin cracking than the fruit in CS. In 2010, the fruit under CA with 2+5, 1+5, and 1+3 had a pronounced delay in ripening, although it exhibited a high incidence of internal breakdown. In 2011, the CA conditions with 2+1 and 2+2 provided the best delay in ripening and a reduced incidence of internal breakdown. The best CA condition for cold storage (at 0.5°C) of ‘Laetitia’ plums is 2 kPa O2 + 2 kPa CO2.

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Effect of 1-Methyl Cyclopropane and Modified Atmosphere Packaging on the Storage of Okra (Abelmoschus esculentus L.): Theory and Experiments

Sustainability ◽

10.3390/su12187547 ◽

2020 ◽

Vol 12 (18) ◽

pp. 7547 ◽

Cited By ~ 1

Author(s):

Rabia Kanwal ◽

Hadeed Ashraf ◽

Muhammad Sultan ◽

Irrum Babu ◽

Zarina Yasmin ◽

...

Keyword(s):

Shelf Life ◽

Cold Storage ◽

Combined Treatment ◽

Chilling Injury ◽

Modified Atmosphere Packaging ◽

Storage Conditions ◽

Modified Atmosphere ◽

Overall Acceptability ◽

Reduce Weight Loss ◽

The Individual

Okra possesses a short shelf-life which limits its marketability, thereby, the present study investigates the individual and combined effect of 1-methylcyclopropene (1-MCP) and modified atmosphere packaging (MAP) on the postharvest storage life of okra. The treated/ untreated okra samples were stored at ambient (i.e., 27 °C) and low (i.e., 7 °C) temperatures for eight and 20 days, respectively. Results revealed that the 1-MCP and/or MAP treatment successfully inhibited fruit softening, reduction in mucilage viscosity, and color degradation (hue angle, ∆E, and BI) in the product resulting in a longer period of shelf-life. However, MAP with or without 1-MCP was more effective to reduce weight loss in okra stored at both ambient and cold storage conditions. Additionally, ascorbic acid and total antioxidants were also retained in 1-MCP with MAP during cold storage. The 1-MCP in combination with MAP effectively suppressed respiration rate and ethylene production for four days and eight days at 27 °C and 7 °C temperature conditions, respectively. According to the results, relatively less chilling injury stress also resulted when 1-MCP combined with MAP. The combined treatment of okra pods with 1-MCP and MAP maintained the visual quality of the product in terms of overall acceptability for four days at 20 °C and 20 days at 7 °C.

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Optimization and sensitivity analysis of fast ethanol assay in maize seeds

Journal of Seed Science ◽

10.1590/2317-1545v41n1206316 ◽

2019 ◽

Vol 41 (1) ◽

pp. 97-107 ◽

Cited By ~ 1

Author(s):

Damrongvudhi Onwimol ◽

Thunyapuk Rongsangchaicharean ◽

Pitipong Thobunluepop ◽

Tanapon Chaisan ◽

Wanchai Chanprasert

Keyword(s):

Quality Assessment ◽

Ethanol Production ◽

Seed Quality ◽

Storage Conditions ◽

Ambient Conditions ◽

Maize Seed ◽

Seed Deterioration ◽

Maize Seeds ◽

Hermetic Seal

Abstract: The evaluation of seed deterioration is very important to control the quality of the seeds stored. This study aimed to investigate the potential of fast ethanol assay for seed quality assessment of maize stored under different conditions. The first experiment was to determine the incubating temperature, incubating time, and amount of seed used in the assay. The results showed that the best protocol for the detection of headspace ethanol was incubation of 3 g of maize seed with 20% moisture content (wet basis) in a 20 mL gas chromatography vial at 70 °C for 1.5 h. The assay induced approximately 200-700 µg.L-1 of headspace ethanol, which was sufficient to identify seeds with different vigour levels. In the second experiment, the optimal conditions were used for quality assessment in aged maize seed stored for 12 months under different storage conditions. The increase in the ethanol production of stored maize seed under the controlled conditions (15 °C and 20% RH in the hermetic seal) was lower than under ambient conditions. The ethanol production levels of maize seed samples at the start of storage was significantly lesser than at six months storage (p < 0.05). The test limitations in deteriorated seed with different cultivars and ages will be discussed.

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Assessment of physico‐chemical and sensory properties of two date ( Phoenix dactylifera L.) cultivars under commercial cold storage conditions

Journal of Food Processing and Preservation ◽

10.1111/jfpp.14228 ◽

2019 ◽

Vol 43 (12) ◽

Cited By ~ 1

Author(s):

Younés Noutfia ◽

Chakib Alem ◽

Younes Filali Zegzouti

Keyword(s):

Cold Storage ◽

Phoenix Dactylifera ◽

Storage Conditions ◽

Sensory Properties ◽

Phoenix Dactylifera L ◽

Physico Chemical

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Control of Gray Mold on Clamshell-Packaged ‘Benitaka’ Table Grapes Using Sulphur Dioxide Pads and Perforated Liners

Pathogens ◽

10.3390/pathogens8040271 ◽

2019 ◽

Vol 8 (4) ◽

pp. 271 ◽

Cited By ~ 3

Author(s):

Osmar Jose Chaves Junior ◽

Khamis Youssef ◽

Renata Koyama ◽

Saeed Ahmed ◽

Allan Ricardo Dominguez ◽

...

Keyword(s):

Mass Loss ◽

Cold Storage ◽

Storage Period ◽

Storage Conditions ◽

International Markets ◽

Gray Mold ◽

Additional Treatment ◽

Table Grapes ◽

Randomized Design ◽

Dual Release

The use of vented clamshells has become popular in the packaging of grapes for local and international markets. The aim of this study is to evaluate the postharvest preservation of ‘Benitaka’ table grapes individually packaged in vented clamshells using different types of SO2-generating pads and perforated plastic liners during cold storage. A completely randomized design with four replications in a two-factor arrangement with an additional treatment [(4 × 3) + 1] was used. The trials were carried out under two situations: Artificial or natural infections with Botrytis cinerea, which is the causal agent of gray mold on table grapes. The incidence of gray mold, shattered berries, and stem browning were evaluated at 30 and 45 days of cold storage at 1 ± 1 °C and 3 days of shelf-life at 22 ± 1 °C after the period of cold storage. Mass loss and berry firmness were also examined at the end of the cold storage period. The use of dual-release SO2-generating pads containing 5 or 8 g of a.i. and slow-release pads with 7 g of a.i. was effective in controlling the incidence of gray mold in grapes packaged in vented clamshells and kept under cold storage for up to 45 days. Under these storage conditions, perforated plastic liners with 0.3% ventilation area or micro-perforated liners with 1.0% ventilation area reduced the percentage of mass loss and shattered berries.

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