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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: Sachin × End date: 2023 × Thesis Type: M.Tech. ×
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    ThesisItemOpen Access
    Effect of microwave heating on extraction of essential oil from turmeric (Curcuma longa L.)
    (CCSHAU, 2018) Sachin; V.K Singh
    In the present study, extraction of essential oil from turmeric rhizome powder was carried out using modified microwave distillation system and rotary evaporator unit. In this study effect of operational parameters i.e. microwave power (200, 250, 300, 350 and 400 W) and extraction time (10, 15, 20, 25 and 30 min.) on physical properties (oil yield, specific gravity, refractive index and color) and chemical properties (acid value, iodine value and saponification value) of essential oil were studied within the experimental region. Fixed ratio samples (1:1:1) i.e. turmeric powder, solvent and distilled water was used during the experiment conducted. Essential oil yield using hexane varied from 1.895% to 4.973% while from 0.180% to 1.226% using petroleum ether solvents. Quality parameters varied i.e. specific gravity from 0.910 to 0.923, refractive index from1.478 to 1.506, color values for oil ranges L* from 70.60 to 98.60, a* from –25.60 to 15.1 and b* from 82.1 to 88.5, acid value from 3.5 to 6.3, iodine value from 38.72 to 41.53 and saponification value from 14.27 to 16.59. Optimum values of process parameters for maximum oil recovery (4.973 %) and best quality of oil (specific gravity: 0.915; refractive index: 1.485; acid value: 4.5 %; iodine value: 39.37 %; saponification value: 14.86) was found at microwave power 300 W and extraction time 20 min.