OPTIMIZATION OF ULTRASOUND-ASSISTED EXTRACTION OF KONJAC FLOUR FROM AMORPHOPHALLUS MUELLERI BLUME

摘要

Amorphophallus muelleri Blume is one of the most abundant Amorphophallus species in Indonesia forest. This native plant is specifically being cultivated for chips production and it is exported to Japan, Hongkong, China and other countries. Konjac flour from Amorphophallus konjac K. Koch is a vital source of glucomannan. It is a polysaccharide used in food, cosmetics and the pharmaceutical industry. Amorphophallus konjac is well known to be one family of Amorphophallus muelleri. In India, during the scarcity, people collected many types of wild roots and tubers to supplement their meager food, including corms of elephant foot yam or Amorphophallus muelleri? With regard to quality, Amorphophallus muelleri corms had high amount of calcium oxalate, which is responsible for the acridity compared to other Amorphophallus species. In Indonesia, corms of Amorphophallus muelleri are processed into chips or sold as fresh tubers for the food industry.