Abstract
A number of Vegetables nowadays have become to be put on market throughout the year. Qualitative change of these vegetables was followed by the authors from consu-mers' standpoint in reference to the time of bringing into market and the place of production. The materials were purchased in Osaka Central Wholesale Market.
Strawberry: Marked differences were not found in the contents of general constituents with exception of protein and ash among following materials; Kogyoku (grown in outdoor, May, Osaka and Nara Prefectures), Takarazuka-shikinari (greenhouse, Nov.-Dec., Hyogo Pref.) and Fukuwa (greenhouse or stone -wall, Jan.-Feb., Shizuoka Pref.) varieties. Ascorbic acid content varied to some extent. Squash: Tokyo-hoko squash (Cucrubita maxima) grown in Okayama Prefecture was analyzed from early June to late August.
Early-harvested fruits contained higher amount of ascorbic acid, but sugar and provitamin A were found more abundantly in the late-harvested materials.
Tomato: In general, the fruits in spring and fall contained higher amount of a scorbic acid than those in summer. Reverse tendency was found with pro-vitamin A con-tent. The content of crude protein was lower in the materials grown in Osaka Prefecture in summer as compared with those grown in Ehime Prefecture from fall to winter.
