00000ctm a22000004a 4500 UP-99796217605141142 Buklod 20230503092542.0 a r |||| u| ta 080210s2005 xx r |||| u|eng d (iLib)UPD-00000310630 DCHE eng LG 993.5 2005 F66 T67 Torella, Mary Grace F. Postharvest changes in protein and pigments of Capsicum Frutescens (L. cvs. Labuyo and Haba) by Mary Grace F. Torella ; Ma. Concepcion C. Lizada, adviser. 2005. 79 leaves ill. Thesis (BSFT)--University of the Philippines Diliman. ABSTRACT Freshly harvested leaves of Capsicum frutescens Linn. (cvs. Labuyo and Haba or var. longum sendt), were held at room temperature (27-29.5°C) for one week. Quantitative changes in moisture, surface color, chlorophyll, carotenoids and proteins were determined in these samples at scheduled intervals. The moisture content of detached leaves progressively decreased during the 7-day period. Colorimetric measurements indicated changes in color, although no leaf yellowing was evident. The chlorophyll declined by ~64-68%, but the proteins appeared to be relatively stable. The decrease in chlorophyll is consistent with the Hunter b value becoming less negative with storage. Capsicum leaves contained very high levels of carotenoids. The total levels in 'Labuyo' and 'Haba' declined by 35-39% from initial levels in both varieties after seven days at room temperature (29°C-29.5°C). This decrease was significant over time (p ≤ 0.05). There was no significant difference (p ≤ 0.05) in chlorophyll, carotenoid and protein contents between the two varietie Peppers. Lizada, Ma. Concepcion C. Thesis UPIANA Thesis UPD DCHE LG 993.5 2005 F66 T67 Thesis