Dataset Information

Improving the shelf life of fresh-cut 'Royal Delicious' apple with edible coatings and anti-browning agents.

ABSTRACT: The objective of this study was to monitor overall quality and to extend the shelf life of fresh-cut apple wedges. Fresh-cut apple wedges were treated with anti-browning agents and edible coatings alone as well as in combination and packed in polypropylene trays. Packed apple wedges were stored at 5?±?2 °C and monitored for physical (colour, physiological loss in weight and firmness), bio-chemical (ascorbic acid, total antioxidant, phenol, polyphenol oxidase and peroxidase enzymes) and microbial quality. In general carboxymethyl cellulose and aloe vera coatings along with anti-browning agents helped in preserving quality of apple slices during storage. Microbial load was significantly low for wedges coated with carboxymethyl cellulose and aloe vera. Polyphenol oxidase and peroxidase enzyme activity was also low in the coated samples. Firmness of the uncoated apple wedges declined more rapidly than the coated ones during storage. The results showed that carboxymethyl cellulose and aloe vera coating in combination with anti-browning agents improved the quality of stored apple wedges.

SUBMITTER: Kumar P

PROVIDER: S-EPMC6098764 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Improving the shelf life of fresh-cut 'Royal Delicious' apple with edible coatings and anti-browning agents.

Kumar Pushpendra P Sethi Shruti S Sharma R R RR Singh Surender S Varghese Eldho E

Journal of food science and technology 20180630 9

The objective of this study was to monitor overall quality and to extend the shelf life of fresh-cut apple wedges. Fresh-cut apple wedges were treated with anti-browning agents and edible coatings alone as well as in combination and packed in polypropylene trays. Packed apple wedges were stored at 5 ± 2 °C and monitored for physical (colour, physiological loss in weight and firmness), bio-chemical (ascorbic acid, total antioxidant, phenol, polyphenol oxidase and peroxidase enzymes) and microbial ...[more]

PMID: 30150837

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Project description:The cuticle, a protective cuticular barrier present in almost all primary aerial plant organs, has a composition that varies between plant species. As a part of the apple peel, cuticle and epicuticular waxes have an important role in the skin appearance and quality characteristic in fresh fruits destined for human consumption. The specific composition and structural characteristics of cutin from two apple varieties, "golden delicious" and "red delicious", were obtained by enzymatic protocols and studied by means of cross polarization magic angle spinning nuclear magnetic resonance (CP-MAS 13C NMR), attenuated total reflection infrared spectroscopy (ATR-FTIR), and mass spectrometry, and were morphologically characterized by specialized microscopy techniques (atomic force microscopy (AFM), confocal laser scanning microscopy (CLMS), and scanning electron microscopy (SEM)). According to CP-MAS 13C NMR and ATR-FTIR analysis, cutins from both varieties are mainly composed of aliphatics and a small difference is shown between them. This was corroborated from the hydrolyzed cutins analysis by mass spectrometry, where 9,10,18-trihydroxy-octadecanoic acid; 10,20-Dihydroxy-icosanoic acid; 10,16-dihydroxy hexadecenoic acid (10,16-DHPA); 9,10-epoxy-12-octadecenoic acid; and 9,10-epoxy-18-hydroxy-12-octadecenoic acid were the main monomers isolated. The low presence of polysaccharides and phenolics in the cutins obtained could be related to the low elastic behavior of this biocomposite and the presence of cracks in the apple cutin's surface. These cracks have an average depth of 1.57 µm ± 0.57 in the golden apple, and 1.77 µm ± 0.64 in those found in the red apple. The results obtained in this work may facilitate a better understanding that mechanical properties of the apple fruit skin are mainly related to the specific aliphatic composition of cutin and help to much better investigate the formation of microcracks, an important symptom of russet formation.

Dataset Information

Improving the shelf life of fresh-cut 'Royal Delicious' apple with edible coatings and anti-browning agents.

Publications

Improving the shelf life of fresh-cut 'Royal Delicious' apple with edible coatings and anti-browning agents.

Similar Datasets

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