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- Title
Variation in Bioactive Compounds and Quality Parameters in Different Modified Atmosphere Packaging during Postharvest Storage of Traditional Leafy Vegetables ( A maranthus cruentus L and Solanum Retroflexum).
- Authors
Mampholo, Mmakatane B; Sivakumar, Dharini; Van Rensburg, Jansen
- Abstract
A maranthus cruentus L and S olanum retroflexum are popular traditional leafy vegetables produced for urban fresh produce markets. In this study, four types of bi-orientated polypropylene packaging ( BOPP), BOPP03, BOPP04, BOPP05 and BOPP06, with different perforations were tested on retention of quality parameters (weight loss, leaf yellowing, color L*, C*, h°), decay, chlorophyll a, chlorophyll b, bioactive compounds (carotenoids, ascorbic acid, total phenolic compounds), antioxidant scavenging activity and sensory properties at 10 C at 2-day intervals up to 14 days. The BOPP films without perforation or BOPP film with two macroperforation (two 2 mm holes) and unpacked leaves were included for comparison. The BOPP05 packaging retained the green color of the leaves (higher h°) and the overall appearance; maintained the chlorophyll content, bioactive compounds and antioxidant scavenging activity; and maintained the leaves, thereby being marketable for up to 8 days for A . cruentus and for 10 days for S . retroflexum at 10 C. The BOPP05 packaging maintained 4.3% O2 and 7.3% CO2 for A . cruentus leaves and 5.6% O2 and 6.7% CO2 for S . reflexum at the equilibrium steady state on the eighth and the 10th day, respectively, at 10 C. Practical Applications The highly perishable nature of A maranthus cruentus L and S olanum retroflexum leaves limits their storage, distribution and marketing. Loss of quality and bioactive compounds in traditional leafy vegetables A . cruentus L and S . scrabum during marketing can be reduced by using bi-orientated polypropylene ( BOPP)05 modified atmosphere packaging. Therefore, the BOPP05 packaging can be recommended to extend the shelf life of A . cruentus L and S . scrabum leaves. This approach can be adopted to commercialize the underutilized vegetables A . cruentus L and S . scrabum that are rich in bioactive compounds.
- Subjects
VEGETABLE packaging; CONTROLLED atmosphere packaging; BIOACTIVE compounds; EDIBLE greens; AMARANTHACEAE; SOLANACEAE
- Publication
Journal of Food Quality, 2015, Vol 38, Issue 1, p1
- ISSN
0146-9428
- Publication type
Article
- DOI
10.1111/jfq.12120