The combined effect of lactic acid and natural plant extracts from guava leaves and pomegranate peel on the shelf life of fresh-cut apple slices during cold storage

Seddiek, A. S. and Hamad, G. M. and Zeitoun, A. A. and Zeitoun, M. A. M. and Ali, S. (2022) The combined effect of lactic acid and natural plant extracts from guava leaves and pomegranate peel on the shelf life of fresh-cut apple slices during cold storage. Food Research (Malaysia), 6 (4). pp. 161-169. ISSN 2550-2166

Freshly-cut or minimally processed fruits have a shorter shelf life than unprocessed ones. The present study was conducted to investigate the effect of natural plant extracts from guava leaves (GE 0.1%), pomegranate peel (PE 0.1%), and lactic acid (LA 1%) on the shelf life of fresh-cut apple slices (FAS) during storage. Microbiological quality, physicochemical properties, and sensory characteristics of FAS samples were monitored during cold storage (4±1oC). Samples treated with natural antimicrobials showed lower psychrotrophic bacterial and yeasts and moulds count compared to the control at day 0 and during the storage. All treated samples were free of Enterobacteriaceae up to the end of storage periods. During storage, moisture content and titratable acidity decreased while pH and soluble solids increased in all samples. Generally, the changes in the physicochemical properties of treated samples were lower compared to control. Sensory scores of all samples decreased throughout the storage, treated samples retained higher scores compared to the control. The treatments of LA 1% + PE 0.1% and LA 1% + GE 0.1% were effective in keeping the quality and prolonging the shelf life of FAS. Such treatments showed better microbial, physiochemical, and sensorial quality over a storage period of 18 days under refrigerated conditions. Our findings suggested the potential use of these natural plant extracts to retain the quality and prolong the shelf life of a fresh-cut apple

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Abstract

Freshly-cut or minimally processed fruits have a shorter shelf life than unprocessed ones. The present study was conducted to investigate the effect of natural plant extracts from guava leaves (GE 0.1%), pomegranate peel (PE 0.1%), and lactic acid (LA 1%) on the shelf life of fresh-cut apple slices (FAS) during storage. Microbiological quality, physicochemical properties, and sensory characteristics of FAS samples were monitored during cold storage (4±1oC). Samples treated with natural antimicrobials showed lower psychrotrophic bacterial and yeasts and moulds count compared to the control at day 0 and during the storage. All treated samples were free of Enterobacteriaceae up to the end of storage periods. During storage, moisture content and titratable acidity decreased while pH and soluble solids increased in all samples. Generally, the changes in the physicochemical properties of treated samples were lower compared to control. Sensory scores of all samples decreased throughout the storage, treated samples retained higher scores compared to the control. The treatments of LA 1% + PE 0.1% and LA 1% + GE 0.1% were effective in keeping the quality and prolonging the shelf life of FAS. Such treatments showed better microbial, physiochemical, and sensorial quality over a storage period of 18 days under refrigerated conditions. Our findings suggested the potential use of these natural plant extracts to retain the quality and prolong the shelf life of a fresh-cut apple

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Item Type:	Article
AGROVOC Term:	fresh-cut products > fresh-cut products Prefer using fresh-cut producefresh-cut produce
AGROVOC Term:	guavas
AGROVOC Term:	lactic acid
AGROVOC Term:	pomegranates
AGROVOC Term:	moisture content
AGROVOC Term:	sensory evaluation > sensory evaluation Prefer using organoleptic analysisorganoleptic analysis
AGROVOC Term:	statistical analysis > statistical analysis Prefer using statistical methodsstatistical methods
AGROVOC Term:	plant extracts
AGROVOC Term:	common apple > common apple Prefer using Malus pumilaMalus pumila
AGROVOC Term:	product quality
Geographical Term:	Egypt
Depositing User:	Ms. Azariah Hashim
Date Deposited:	30 Oct 2024 09:10
Last Modified:	30 Oct 2024 09:10
URI:	http://webagris.upm.edu.my/id/eprint/659

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