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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Natural Products and Resources (IJNPR)
[Formerly Natural Product Radiance (NPR)] >
NPR Vol.4 [2005] >
NPR Vol.4(4) [July-August 2005] >
| Title: | Fruit |
| Issue Date: | Aug-2005 |
| Publisher: | CSIR |
| Abstract: | Litchi [Litchi chinensis (Gaertn.) Sonn.] pulp is very
perishable and thus has a short shelf life, with marketers and consumers alike
desiring a longer period. Chinese researchers have investigated the effects of
chitosan coating on quality maintenance and shelf-life extension of peeled
fruits of cv. ‘Huaizhi’. Manually peeled litchi fruits were treated with aqueous
solutions of 0%, 1%, 2% or 3% of chitosan, placed into trays over-wrapped with
plastic film, and then stored at −1°C. Changes in sensory quality in terms of
taste and colour scales and weight loss were evaluated. Polyphenol oxidase (PPO)
and peroxidase (POD) activities were also measured. Application of chitosan
coating retarded weight loss and the decline in sensory quality, with higher
contents of total soluble solids, titratable acid and ascorbic acid and
suppressed the increase in activities of PPO and POD. The results showed that
application of chitosan coating effectively maintained quality attributes and
extended shelf life of the peeled fruit [Dong
Huaqiang, Cheng Liangying, Tan Jiahou, Zheng Kunwang and Jiang Yueming, Effects
of chitosan coating on quality and shelf life of peeled litchi fruit, J Food Eng, 2004, 64(3), 355-358].
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| Page(s): | 287-288 |
| ISSN: | 0975-1092 (Online); 0972-592X (Print) |
| Source: | NPR Vol.4(4) [July-August 2005]
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