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The Physico-Chemical Changes of the Mashed Red Pepper During Frozen Storage  

Sul, Min-Sook (Dept. of Human Life Science, Sejong University)
Lee, Hyun-Ja (Dept. of Food Biotechnology, Hankyong University)
Park, So-Hee (Dept. of Hansung Co. Food Research Center)
Kim, Jong-Gun (Dept. of Human Life Science, Sejong University)
Hwang, Sung-Yeon (Dept. of Food Biotechnology, Hankyong University)
Publication Information
Journal of the Korean Society of Food Culture / v.19, no.2, 2004 , pp. 209-216 More about this Journal
Abstract
To investigate physico-chemical changes of mashed red repper and red pepper powder during frozen storage, we analyzed the quality of samples after mashing, mashing and blanching, mashing and addition of vitamin C, mashing and addition of NaCl. The most important quality factor of red pepper is red color. $\alpha$ value of red pepper powder of Pochungchun was 31.51. These results showed that those processing methods were effective to preserve red color. Capsanthin contents of mashed red pepper treated with vitamin C were decreased 1.8% after 180 days of frozen storage. This decrease was the least, showing that addition of vitamin C helped retaining capsanthin contents. Capsaicin and dihydrocapsaicin contents in Pochungchun powder ore decreased 11.9 and 18.3% during frozen storage respectively. These results showed that capsaicin was more stable than dihycrocapsaicin during frozen storage. Generally capsaicin and dihydrocapsaicin in the Pochungchun red pepper frozen-stored after mashing were less decreased than red pepper powder, and addition of vitamin C to the mashed red pepper was the most effective to retain capsicin and dihydrocapsaicin than others. The content of vitamin C in the red pepper frozen-stored after masking and blanching was 12.0 mg/100g, compared with 44.0 mg/100g in the sample stored after only mashing. This suggested that blanching process destroyed vitamin C in the mashed red pepper. Addition of salt in the mashed red pepper showed the same inclination. But, addition of vitamin C to the mashed red pepper was decreased 32.9% compared with 69.0% in the mashed red repper during frozen storage. Theser results indicated that addition of vitamin C could retain vitamin C in the mashed red lopper.
Keywords
red pepper; mashing; physico-chemical characteristics;
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