Development of Long-Term Storage Technology for Chinese Cabbage - Physiological Characteristics of Postharvest Freshness in a Cooler with a Monitoring and Control Interface

Lim, Ki-Taek; Kim, Jang Ho; Chung, Jong Hoon

doi:10.5307/jbe.2014.39.3.194

Cited by 6 publications

(3 citation statements)

References 28 publications

(27 reference statements)

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“…Additionally, the thickness of PET relieves the difference in the temperatures and hence, the use of plastic wrapping can ensure more constant temperature of the food even when the temperature of the warehouse fluctuates. The results of this study were similar to those on the use of plastic films for the preservation of Chinese cabbage (Lim et al, 2014).…”

Section: Resultssupporting

confidence: 77%

System Design and Performance Analysis of a Quick Freezer using Supercooling

Kim¹,

Chun²,

Park³

et al. 2014

Journal of Biosystems Engineering

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Purpose: This study was conducted for enhancing the performance of a conventional quick freezer by introducing the supercooling state, using a low-temperature coolant. Methods: In the present investigation, the supercooling process was executed prior to quick freezing for reducing the time by which the temperature passes the zone of maximum ice crystal formation. Every food has different nucleation points and hence, we used silicone oil as the coolant for supercooling for easy modification of temperature. Additionally, for quick freezing, we used liquid nitrogen spray. Results: Using the heat exchangertype precooler with silicone oil, the temperature of the chamber was easily changed for enabling supercooling. Particularly, the results of the freezing test with garlic indicated that this system improved the hardness of garlic after it was thawed, compared to the conventional freezing method. Conclusions: Before quick freezing, if the food item is subjected to the supercooling state, the time from nucleation to the temperature reaching the frozen state (-5°C, which is the maximum ice crystal formation zone) will be shorter than that incurred using quick freezing alone. The combination of the heat exchangertype supercooler and liquid nitrogen sprayer is expected to serve as a promising technology for improving the physicochemical qualities of frozen foods.

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Section: Resultssupporting

confidence: 77%

System Design and Performance Analysis of a Quick Freezer using Supercooling

Kim¹,

Chun²,

Park³

et al. 2014

Journal of Biosystems Engineering

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“…pekinensis ) is a leafy vegetable that generally grows best from late summer to early winter but that can also be cultivated year-round depending on the genotype. Chinese cabbage is readily affected by various external environmental factors that lead to multiple nutrient losses, cell death-induced leaf yellowing, weight loss due to reduced relative humidity, and decomposition [ 7 , 8 ]. In Chinese cabbage, the leaf is the economically most important part of the plant; consequently, leaf senescence is responsible for major crop yield losses.…”

Section: Introductionmentioning

confidence: 99%

Comparative Transcriptome-Based Mining of Senescence-Related MADS, NAC, and WRKY Transcription Factors in the Rapid-Senescence Line DLS-91 of Brassica rapa

Rameneni

Lee

et al. 2021

IJMS

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Leaf senescence is a developmental process induced by various molecular and environmental stimuli that may affect crop yield. The dark-induced leaf senescence-91 (DLS-91) plants displayed rapid leaf senescence, dramatically decreased chlorophyll contents, low photochemical efficiencies, and upregulation of the senescence-associated marker gene BrSAG12-1. To understand DLS molecular mechanism, we examined transcriptomic changes in DLS-91 and control line DLS-42 following 0, 1, and 4 days of dark treatment (DDT) stages. We identified 501, 446, and 456 DEGs, of which 16.7%, 17.2%, and 14.4% encoded TFs, in samples from the three stages. qRT-PCR validation of 16 genes, namely, 7 MADS, 6 NAC, and 3 WRKY, suggested that BrAGL8-1, BrAGL15-1, and BrWRKY70-1 contribute to the rapid leaf senescence of DLS-91 before (0 DDT) and after (1 and 4 DDT) dark treatment, whereas BrNAC046-2, BrNAC029-2/BrNAP, and BrNAC092-1/ORE1 TFs may regulate this process at a later stage (4 DDT). In-silico analysis of cis-acting regulatory elements of BrAGL8-1, BrAGL42-1, BrNAC029-2, BrNAC092-1, and BrWRKY70-3 of B. rapa provides insight into the regulation of these genes. Our study has uncovered several AGL-MADS, WRKY, and NAC TFs potentially worthy of further study to understand the underlying mechanism of rapid DLS in DLS-91.

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“…Higher CO 2 concentration is also used for an antimicrobial effect on the MAP; it can also extend the shelf life (Beaudry, 2000;Church and Parsons, 1995;Gorrish and Peppelenbos, 1992;Iqbal et al, 2009;Kader et al, 1989;Ooraikul andStiles, 1991, Farber et al, 2003). Hence, MAP is widely used for the preservation of fruits (Oliveira et al, 2015), vegetables (Helland et al, 2016), and meats (Rubio et al, 2016;Nair et al, 2015;Lim et al, 2014). Given that the film for MAP perfectly blocks the gas, the oxygen inside the package is consumed and anaerobic respiration results in food with an undesirable taste, physiological change, and decay from fungi (Lee et (Mangaraj et al, 2009;Syverud and Stenius, 2009).…”

Section: Introductionmentioning

confidence: 99%

Study of Pallet Scale Modified Atmosphere Packaging Films for Reducing Water Condensation

Kim

Park

et al. 2016

Journal of Biosystems Engineering

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Purpose: The aim of this study was to find an appropriate polymer film, which could reduce the water condensation for pallet-size modified atmosphere packaging (MAP). Methods: Five different types of films were selected from several commercialized films. Prior to the real food storage test, plastic boxes with wetted plastic balls were used to simulate the high humidity conditions of real food storage. The initial MAP condition was 5% oxygen and 95% nitrogen, and the O2 concentration, the relative humidity and water condensation inside the films were checked on a daily basis. The MAP test for tomatoes was conducted by using the most appropriate film from the five films examined in this study. Results: Every film except Mosspack® indicated a similar variation in the O2 concentration over the course of time. The relative humidity near the surfaces of all the films except nylon-6 approached saturation conditions over time. For three kinds of films, namely, low-density polyethylene (LDPE) film, anti-fogging oriented polypropylene (AFOPP) film, and Mosspack®, the inner surfaces of the films were fully covered with dew after a storage period of a day. Conversely, an area of 4.5% was covered with dew in the case of the poly lactic acid (PLA) film, and there was no dew inside the nylon-6 film. The pallet-size MAP test for tomatoes was conducted by using the nylon-6 film and there was no water condensation inside the nylon-6 film over three weeks of storage. Conclusions: During the pallet scale MAP, water condensation could cause severe fungal infection and wetting of the corrugated box. Hence, it was important to minimize water condensation. This study showed that the MAP films with high WVTR such as nylon-6 and PLA could reduce the water condensation inside the pallet scale MAP.

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Development of Long-Term Storage Technology for Chinese Cabbage - Physiological Characteristics of Postharvest Freshness in a Cooler with a Monitoring and Control Interface

Cited by 6 publications

References 28 publications

System Design and Performance Analysis of a Quick Freezer using Supercooling

System Design and Performance Analysis of a Quick Freezer using Supercooling

Comparative Transcriptome-Based Mining of Senescence-Related MADS, NAC, and WRKY Transcription Factors in the Rapid-Senescence Line DLS-91 of Brassica rapa

Study of Pallet Scale Modified Atmosphere Packaging Films for Reducing Water Condensation

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