Vol. 8 (4) : July-August 2017 issue
Green Farming Vol. 8 (4) : 995-998 ; July-August, 2017
Efficacy of calcium chloride, carboxymethyl cellulose and chitosan on the shelf-life of strawberry (Fragaria x ananassa D.)
P.K. BOLAa1*, S.K. JAINa2 and ANUPAMAb3
aDepartment of Post Harvest Technology, College of Horticulture and Forestry, Jhalarapatan, Jhalawar - 326 023 Agriculture University, Borkhera, Kota (Rajasthan)
bDeptt. of Vegetable Science, Sardarkrushinagar Dantiwada Agricl. University, Banaskantha - 385 506 (Gujarat)
Designation : 1,3P.G. Student *(pradeepbola007@gmail.com), 2Professor & Head
Subject : Food Science, Preservation & Processing, Protectants & Infestation and Post-harvest Technology
Paper No. : P-6337
Total Pages : 4
Received : 14 December 2016
Revised accepted : 06 July 2017
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Citation :
P.K. BOLA, S.K. JAIN and ANUPAMA. 2017. Efficacy of calcium chloride, carboxymethyl cellulose and chitosan on the shelf-life of strawberry (Fragaria x ananassa D.). Green Farming Vol. 8 (4) : 995-998 ; July-August, 2017
ABSTRACT
Strawberry fruits have a very short shelf-life and senescent period due to their high degree of perishability and infection caused by several pathogens that can rapidly reduce fruit quality. The aim of this study was to determine the efficacy of calcium chloride and carboxymethyl cellulose (CMC) coatings with and without chitosan (CH) coatings on the shelf-life and overall quality of strawberry fruit. Strawberry fruit dipped for 5 min in solutions of calcium chloride (1%, 2% and 3%) and CMC (1%, 2% and 3%) alone and in combination with chitosan 1% for 5 minutes followed by placing them on newspaper sheet for drying in shade for 30 minutes. After treatment the fruits of each lot were packed in specially designed “punnets” made up of propylene material. The fruits were stored in refrigerated condition at 4±10c and 85-90 per cent relative humidity, while the uncoated fruit served as controls. Fruit coated with edible coatings showed significant delays in the change of weight loss, spoilage percentage, pH, total soluble solids (TSS) and anthocyanin content as compared to uncoated control fruit. In addition, the edible coatings had a positive effect on maintaining higher score for sensory parameters which decreased in control fruit due to over-ripening and senescence processes. As compared to control and all other treatments, the use of CMC 2% + CH 1% coating was found to be the best for extending the shelf-life and maintaining quality of strawberry fruit.
Key words :
Calcium chloride, Carboxymethyl cellulose, Chitosan, Strawberry.