Evaluating of hermetic bags for long-term storage of turmeric (Curcuma longa L.) rhizomes. (May 2021)

• Record Type: Journal Article
• Authors: Yewle, Nileshwari R.; Swain, Kishore C.; Mann, Sandeep; Dhakre, Digvijay Singh
• Is Part Of: Journal of stored products research. Volume 92(2021)
• Publication Date: 2021-05
• Subjects: Turmeric rhizomes -- Hermetic bags -- Curcumin content -- Weightloss -- Moisture content; Food -- Storage -- Periodicals; Farm produce -- Storage -- Diseases and injuries -- Periodicals; Entomology -- Periodicals; Food Contamination -- Periodicals; Food Preservation -- Periodicals; Insect Control -- Periodicals; Aliments -- Entreposage -- Périodiques; Produits agricoles -- Entreposage -- Maladies et dommages -- Périodiques; Electronic journals; 631.568
• DOI: 10.1016/j.jspr.2021.101806
• Languages: English
• ISSNs: 0022-474X

Abstract

Abstract: Hermetical and traditional storage bags were evaluated for their effect on the postharvest storage of turmeric at laboratory conditions. The traditional Polypropylene (PP) woven bags and the jute bags were compared with Purdue Improved Crop Storage (PICS), Super Grainpro, Savegrain bags, and Ecotect bags. Every month, for eleven months, the levels of oxygen and carbon dioxide, moisture, insect damage, live insect count, weight loss of turmeric rhizomes were monitored. A slight change in moisture was observed for turmeric stored in PICS, Grainpro, Savegrain, and Ecotect bags. But, a significant decrease in moisture was observed for turmeric stored in jute bags. The levels of oxygen in PICS and Ecotect bags decreased from 20% to 8% while carbon dioxide content increased in PICS bags from 0.2% to 12% during the period of storage. In jute bags, the level of oxygen was approximately 19.3% but the level of carbon dioxide increased from 0.05% to 0.43% due to insect activity. In all hermetic bags, the risk of insects has decreased over time, and weight loss has also decreased as compared with jute bags. In Polypropylene woven and jute bags, damage by insects and weight loss increased during storage while the curcumin content reduced. Our study showed the effectiveness of PICS, Grainpro, Savegrain, and Ecotec bags in controlling insects and weightloss in turmeric rhizomes over the traditional bags. All the four hermetic bags performed well in long-term storage of turmeric rhizome and can be recommended. Highlights: The traditional Polypropylene white woven bags and the Jute bags were compared with Purdue Improved Crop Storage (PICS), Super GrainPro, Savegrain bags, and Ecotect bags for turmeric Rhizome storage. The maximum levels of oxygen in PICS and Ecotect bags decreased from 20% to 8% while carbon dioxide content increased in PICS bags from 0.2% to 12% during the period of storage. In PP woven and jute bags, damage by insects and weight loss increased during storage while the curcumin content reduced.