Organic Acid, Sugar and Amino Acid Composition of Bamboo Shoots

Abstract

ABSTRACT The major organic acid in bamboo shoots ( Phyllostachys pubescens ) was oxalic, ranging from 462 (top) to 157 mg (base) per 100g fresh weight. Citric was rich in the upper half, while malic was rich in the lower 3/4 ths. Fructose, glucose and sucrose were contained with approximately equal amounts in the top quarter section, the former two sugars were also abundant in the lower half. Tyrosine was the most abundant component in the free amino acid. GC‐MS determination revealed that tyrosine was the major component of white clumpy substances produced after blanching, and its content comprised 89% of the total material. In addition the material contained 5.5% starch, 4.9% moisture, and 0.6% minerals.