1. Introduction
Vegetable soybean is a specialty food-type soybean harvested
while the seeds are still immature at R6 stage
It is similar to field
matured soybean except for its larger seeds and lighter hilum color Vegetable soybean has advantages in sensory attributes
over mature soybean, such as green color, soft texture, large seed
size, slightly sweet taste, and less objectionable beany flavor. In
addition, vegetable soybean is higher in nutritional content than
mature soybean, including higher ascorbic acid and b-carotene
contents, and lower amounts of indigestible oligosaccharides and
anti-nutritional substances such as trypsin-inhibitors and phytates
If properly stored, fresh vegetable soybean can retain its flavor
and appearance for a short time period. The two most important
sensorial attributes for vegetable soybean are sweetness and savory
taste. The sweet taste comes from its high sucrose content, and the