Comparative efficacies of chemical sprout inhibitors and vapour heat treatments on the control of sprouting in stored potatoes.

Rama, M. V. and Narasimham, P. (1987) Comparative efficacies of chemical sprout inhibitors and vapour heat treatments on the control of sprouting in stored potatoes. Journal of Food Science and Technology, 24 (1). 40-42, 10 ref..

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Abstract

Potatoes were given a pre-harvest spray of maleic hydrazide (MH) (containing 0.1% Tween-80 and 250 p.p.m. benlate) at 1000 and 2000 p.p.m. levels, and post harvest treatment with sodium salt of naphthalene acetic acid (NAA), methyl ester of naphthalene acetic acid (MENA), iso-propyl-N-chlorophenyl carbamate (CIPC) and tetrachloronitrobenzene (TCNB) each at 1000 p.p.m. level and stored at 22-35 degree C and 20 degree C for 3 wk and at 10 degree C for 6 wk. Five wk after harvest, potatoes were given vapour heat treatment (VHT) at 60 degree C with 95 plus/minus 5% RH for 60 min and stored at 22-35, 20 and 10 degree C. After 3 wk one lot from each of the above temp. was given a second VHT at 60 degree C for 60 min. Potatoes were observed periodically for sprout yield, spoilage and physiological loss in wt. (PLW). Of the 5 chemicals, MENA and NAA at 1000 p.p.m. and MH at 2000 p.p.m. reduced the sprout yield effectively at the 3 storage temp.; however MENA was found most effective. VHT was more effective at 22-35 degree C than at 20 and 10 degree C, 2 treatments being needed to significantly reduce the sprout yield at 20 and 10 degree C. No treatment significantly reduced the PLW compared to the control. The rate of spoilage in VHT was the same as in any chemical treatment. It is concluded that VHT applied twice was as effective as MH at 2000 p.p.m. when the reduction in sprout yield was 83 and 71% resp. when stored at 22-35 degree C.

Item Type:	Article
Uncontrolled Keywords:	GERMINATION-; potatoes, sprout inhibitors & sprouting in stored; potatoes, vapour heat treatment & sprouting in stored; PLANT-GROWTH-REGULATORS; STORAGE-VEGETABLES; STEAMING-; POTATOES-; sprout inhibitors & sprouting in stored potatoes; vapour heat treatment & sprouting in stored potatoes
Subjects:	600 Technology > 08 Food technology > 23 Vegetables > 02 Potato 600 Technology > 08 Food technology > 06 Preservation and Storage
Divisions:	Fruit and Vegetable Technology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	22 Feb 2011 06:14
Last Modified:	22 Feb 2011 06:14
URI:	http://ir.cftri.res.in/id/eprint/3547

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