Effects of Different Calcium Preparations on Fresh-Cut Quality and Storage Quality of Starkrimson Apple

Appropriate calcium treatments help maintain the appearance, nutritional quality, and postharvest quality of apples, reducing losses during storage. This study investigated the effects of different calcium preparations on the fresh-cut quality and ultrastructure of ‘Starkrimson’ apples. The treatmen...

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Main Authors: Maoxiang Sun, Fen Wang, Jianchao Ci, Yangyang Liu, Keyi Li, Dong Wang, Wen Yu, Yu Zhuang, Yuansong Xiao
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/14/9/1293
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author Maoxiang Sun
Fen Wang
Jianchao Ci
Yangyang Liu
Keyi Li
Dong Wang
Wen Yu
Yu Zhuang
Yuansong Xiao
author_facet Maoxiang Sun
Fen Wang
Jianchao Ci
Yangyang Liu
Keyi Li
Dong Wang
Wen Yu
Yu Zhuang
Yuansong Xiao
author_sort Maoxiang Sun
collection DOAJ
description Appropriate calcium treatments help maintain the appearance, nutritional quality, and postharvest quality of apples, reducing losses during storage. This study investigated the effects of different calcium preparations on the fresh-cut quality and ultrastructure of ‘Starkrimson’ apples. The treatments included control (CK), calcium chloride (T1), sorbitol-chelated calcium (T2), and calcium nitrate (T3). The results demonstrated that sorbitol-chelated calcium significantly inhibited the decline in fresh-cut firmness and pectin content while reducing the increase in cellulose content and minimizing ultrastructural damage. Apples treated with sorbitol-chelated calcium maintained the best fresh-cut hardness and soluble pectin contents, which were 35.71% and 15.42% higher than that of CK on the 12th day, and the cellulose was 27.08% lower than that of CK. Under transmission electron microscopy, the pulp cell surface in the T2 group remained intact, with no bending or deformation, and the middle lamella was well preserved. Additionally, T2 treatment promoted the expression of aroma-related genes during fruit storage. Sorbitol-chelated calcium effectively preserved color and significantly reduced the browning and microbial spoilage of fresh-cut apples, particularly postharvest pathogen growth. The study demonstrates that sorbitol-chelated calcium preserves fresh-cut apple quality by reinforcing cell wall integrity through calcium-mediated crosslinking, suppressing pectin degradation and cellulose accumulation, and activating aroma-related genes (<i>AAT1</i>, <i>AAT2</i>, <i>LOX</i>) to enhance volatile synthesis, thereby reducing microbial spoilage and enzymatic browning during storage.
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spelling doaj-art-9a60ab0f30704a32a1d3d5fb53188f992025-08-20T01:49:18ZengMDPI AGPlants2223-77472025-04-01149129310.3390/plants14091293Effects of Different Calcium Preparations on Fresh-Cut Quality and Storage Quality of Starkrimson AppleMaoxiang Sun0Fen Wang1Jianchao Ci2Yangyang Liu3Keyi Li4Dong Wang5Wen Yu6Yu Zhuang7Yuansong Xiao8Key Laboratory of Biochemistry and Molecular Biology in Universities of Shandong, School of Advanced Agricultural Sciences, Weifang University, Weifang 261061, ChinaKey Laboratory of Biochemistry and Molecular Biology in Universities of Shandong, School of Advanced Agricultural Sciences, Weifang University, Weifang 261061, ChinaAgricultural Biosystems Engineering Group, Department of Plant Sciences, Wageningen University and Research, P.O. Box 16, 6700 AA Wageningen, The NetherlandsKey Laboratory of Biochemistry and Molecular Biology in Universities of Shandong, School of Advanced Agricultural Sciences, Weifang University, Weifang 261061, ChinaKey Laboratory of Biochemistry and Molecular Biology in Universities of Shandong, School of Advanced Agricultural Sciences, Weifang University, Weifang 261061, ChinaChangle Anshanghu Agricultural Science and Technology Development Co., Ltd., Weifang 261061, ChinaKey Laboratory of Biochemistry and Molecular Biology in Universities of Shandong, School of Advanced Agricultural Sciences, Weifang University, Weifang 261061, ChinaSchool of Engineering, Northeast Agricultural University, Harbin 150030, ChinaState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, ChinaAppropriate calcium treatments help maintain the appearance, nutritional quality, and postharvest quality of apples, reducing losses during storage. This study investigated the effects of different calcium preparations on the fresh-cut quality and ultrastructure of ‘Starkrimson’ apples. The treatments included control (CK), calcium chloride (T1), sorbitol-chelated calcium (T2), and calcium nitrate (T3). The results demonstrated that sorbitol-chelated calcium significantly inhibited the decline in fresh-cut firmness and pectin content while reducing the increase in cellulose content and minimizing ultrastructural damage. Apples treated with sorbitol-chelated calcium maintained the best fresh-cut hardness and soluble pectin contents, which were 35.71% and 15.42% higher than that of CK on the 12th day, and the cellulose was 27.08% lower than that of CK. Under transmission electron microscopy, the pulp cell surface in the T2 group remained intact, with no bending or deformation, and the middle lamella was well preserved. Additionally, T2 treatment promoted the expression of aroma-related genes during fruit storage. Sorbitol-chelated calcium effectively preserved color and significantly reduced the browning and microbial spoilage of fresh-cut apples, particularly postharvest pathogen growth. The study demonstrates that sorbitol-chelated calcium preserves fresh-cut apple quality by reinforcing cell wall integrity through calcium-mediated crosslinking, suppressing pectin degradation and cellulose accumulation, and activating aroma-related genes (<i>AAT1</i>, <i>AAT2</i>, <i>LOX</i>) to enhance volatile synthesis, thereby reducing microbial spoilage and enzymatic browning during storage.https://www.mdpi.com/2223-7747/14/9/1293postharvest qualityfresh-cutsorbitol-chelated calciumsoluble pectinpathogens
spellingShingle Maoxiang Sun
Fen Wang
Jianchao Ci
Yangyang Liu
Keyi Li
Dong Wang
Wen Yu
Yu Zhuang
Yuansong Xiao
Effects of Different Calcium Preparations on Fresh-Cut Quality and Storage Quality of Starkrimson Apple
Plants
postharvest quality
fresh-cut
sorbitol-chelated calcium
soluble pectin
pathogens
title Effects of Different Calcium Preparations on Fresh-Cut Quality and Storage Quality of Starkrimson Apple
title_full Effects of Different Calcium Preparations on Fresh-Cut Quality and Storage Quality of Starkrimson Apple
title_fullStr Effects of Different Calcium Preparations on Fresh-Cut Quality and Storage Quality of Starkrimson Apple
title_full_unstemmed Effects of Different Calcium Preparations on Fresh-Cut Quality and Storage Quality of Starkrimson Apple
title_short Effects of Different Calcium Preparations on Fresh-Cut Quality and Storage Quality of Starkrimson Apple
title_sort effects of different calcium preparations on fresh cut quality and storage quality of starkrimson apple
topic postharvest quality
fresh-cut
sorbitol-chelated calcium
soluble pectin
pathogens
url https://www.mdpi.com/2223-7747/14/9/1293
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