Effect of different process parameters on starch extraction yield
Author(s): Kuril L, Ramteke TR and Suryawanshi OP
Abstract: Starch is the major composition of any cereal crops and present in the form of carbohydrates along with cellulose and other components. Paddy is one of the most commonly growing crop in different states of India such as Uttar Pradesh, West Bengal, Punjab, Telangana, Odisha, Tamil Nadu, Chhattisgarh, etc. In Chhattisgarh paddy cultivation is prime crop among the all groups of farmers and the paddy production in Chhattisgarh is continuously increases from the last decade. In 2021-2022 the overall production of paddy in Chhattisgarh was 7.90 million tonnes whereas in 2020-2021 the production was 7.16 million tonnes. It has been seen that during the milling of paddy, significant amount of broken has been generated. This broken rice are utilized in terms of extraction of starch from different rice varieties. The objective of this study was to optimize the starch extraction process from broken rice using alkaline steeping method. For the extraction of starch from the broken of different rice varieties such as Mahamaya, Swarna and MTU-1010 in different conditions of steeping time (viz.,18, 24 and 36 h) and chemical concentration (viz., 0.2, 0.3 and 0.4%) were utilized. The average starch extraction efficiency of Mahamaya, Swarna and MTU-1010 were found to be 68.66%, 74.33%, and 70.33% respectively. The extraction of starch with 0.3% chemical concentration and 18h steeping time was optimized condition for broken of Swarna rice variety. These results indicated that the alkaline steeping method is efficient for starch extraction from broken rice.
