PROVITAMIN-A AND ASCORBIC-ACID CONTENT OF FRESH PEPPER CULTIVARS (CAPSICUM-ANNUUM) AND PROCESSED JALAPENOS

Citation
Lr. Howard et al., PROVITAMIN-A AND ASCORBIC-ACID CONTENT OF FRESH PEPPER CULTIVARS (CAPSICUM-ANNUUM) AND PROCESSED JALAPENOS, Journal of food science, 59(2), 1994, pp. 362-365
Citations number
17
Categorie Soggetti
Food Science & Tenology
Journal title
ISSN journal
00221147
Volume
59
Issue
2
Year of publication
1994
Pages
362 - 365
Database
ISI
SICI code
0022-1147(1994)59:2<362:PAACOF>2.0.ZU;2-P
Abstract
Alpha and beta carotene, provitamin A activity, dehydroascorbic acid, L-ascorbic acid and total ascorbic acid content of ''jalapeno,'' ''bel l,'' long green/red ''chile,'' ''serrano'' and ''yellow wax'' peppers (Capsicum annuum L.) at green and red stages of maturity were determin ed by HPLC. Effects of thermal processing on vitamin A and C retention in ''jalapeno'' peppers was also determined. Provitamin A activity ra nged from 27.3 to 501.9 Retinol Equivalents (RE/100g). Ascorbic acid c oncentration ranged from 76.1 to 243.1 (mg/100g). Provitamin A activit y and ascorbic acid content increased with maturity in all cultivars. Thermal processing of ''jalapeno'' cultivars resulted in a 25% decreas e of total provitamin A activity and a 75% decrease in total ascorbic acid.