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Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

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Subject: Processing and Food Engineering × Author: Ravi Kumar × Start date: 2018 × Type: Thesis × Thesis Type: M.Tech. ×
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    ThesisItemOpen Access
    Process Development for Microwave Assisted Extraction of Glycyrrihizic acid from Mulhatti
    (CCSHAU, 2019) Ravi Kumar; Garg, M.K
    In the present study, extraction of Glycyrrihizic acid from Mulhatti root powder was carried out using modified microwave system, rotary evaporator and HPLC unit. The effect of operational parameters i.e. microwave power (300, 325, 350, 375 and 400 W), extraction time (2, 3, 4, 5 and 6 min.) and by changing the different solvents for extraction (methanol and ethanol), powder size (0.80, 0.30, 0.15 mm) on extraction yield and GA were studied. Fixed ratio samples (1:10) i.e. mulhatti root powder, solvent was used during the experiment conducted. The amount of extracts of mulhatti roots was evaluated by using High Performance Liquid Chromatography (HPLC) with C18 column with a mobile phase consisting ethanol: water 70:30(v/v). Extraction of GA% using ethanol varied from 2.139% to 2.186% of mulhatti powder while from 0.285% to 0.307% using methanol as solvent. Further study was carried out using ethanol as solvent. Extraction yield of GA was 2.951% as maximum and minimum GA 0.2741% using different sizes (0.80, 0.30, 0.15 mm) of mulhatti powder. The optimized values of process parameters for maximum extraction yield% (24.54) and GA% (2.164) were microwave power 350 (W) and extraction time 4 min within the experimental region.