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Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment

Freshly cut vegetables are susceptible to microbial contamination and oxidation during handling and storage. Hence, light-emitting diode technology can effectively inhibit microbial growth and improve antioxidant enzyme activity. In this paper, the freshly cut amaranth was treated with different int...

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Detalles Bibliográficos
Autores principales: Jin, Siyuan, Ding, Zhaoyang, Xie, Jing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400882/
https://www.ncbi.nlm.nih.gov/pubmed/34451660
http://dx.doi.org/10.3390/plants10081614
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author Jin, Siyuan
Ding, Zhaoyang
Xie, Jing
author_facet Jin, Siyuan
Ding, Zhaoyang
Xie, Jing
author_sort Jin, Siyuan
collection PubMed
description Freshly cut vegetables are susceptible to microbial contamination and oxidation during handling and storage. Hence, light-emitting diode technology can effectively inhibit microbial growth and improve antioxidant enzyme activity. In this paper, the freshly cut amaranth was treated with different intensities of blue light-emitting diode (LED(460nm)) over 12 days. Chlorophyll content, ascorbic acid content, antioxidant capacity, antioxidant enzymes activity, the changes in microbial count, and sensorial evaluation were measured to analyze the effects of LED treatment on the amaranth. Blue LED(460nm) light irradiation improved the vital signs of the samples and extended the shelf life by 2–3 days. The AsA–GSH cycle was effectively activated with the irradiation of 30 μmol/(m(2)·s) blue LED(460nm) light. According to the results, the LED(460nm) light could retard the growth of colonies and the main spoilage bacteria, Pseudomonas aeruginosa, of freshly cut amaranth.
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spelling pubmed-84008822021-08-29 Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment Jin, Siyuan Ding, Zhaoyang Xie, Jing Plants (Basel) Article Freshly cut vegetables are susceptible to microbial contamination and oxidation during handling and storage. Hence, light-emitting diode technology can effectively inhibit microbial growth and improve antioxidant enzyme activity. In this paper, the freshly cut amaranth was treated with different intensities of blue light-emitting diode (LED(460nm)) over 12 days. Chlorophyll content, ascorbic acid content, antioxidant capacity, antioxidant enzymes activity, the changes in microbial count, and sensorial evaluation were measured to analyze the effects of LED treatment on the amaranth. Blue LED(460nm) light irradiation improved the vital signs of the samples and extended the shelf life by 2–3 days. The AsA–GSH cycle was effectively activated with the irradiation of 30 μmol/(m(2)·s) blue LED(460nm) light. According to the results, the LED(460nm) light could retard the growth of colonies and the main spoilage bacteria, Pseudomonas aeruginosa, of freshly cut amaranth. MDPI 2021-08-06 /pmc/articles/PMC8400882/ /pubmed/34451660 http://dx.doi.org/10.3390/plants10081614 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jin, Siyuan
Ding, Zhaoyang
Xie, Jing
Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment
title Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment
title_full Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment
title_fullStr Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment
title_full_unstemmed Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment
title_short Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment
title_sort study of postharvest quality and antioxidant capacity of freshly cut amaranth after blue led light treatment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400882/
https://www.ncbi.nlm.nih.gov/pubmed/34451660
http://dx.doi.org/10.3390/plants10081614
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