Effect of microwave heating on extraction of essential oil from turmeric (Curcuma longa L.)
| dc.contributor.advisor | V.K Singh | |
| dc.contributor.author | Sachin | |
| dc.date.accessioned | 2019-04-30T04:31:47Z | |
| dc.date.available | 2019-04-30T04:31:47Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | 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. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810101292 | |
| dc.keywords | Microwave power, Extraction time, Oil yield, Specific gravity, Refractive index, Color, Acid value, Iodine value, Saponification value | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | CCSHAU | en_US |
| dc.sub | Processing and Food Engineering | en_US |
| dc.subject | null | en_US |
| dc.theme | Effect of microwave heating on extraction of essential oil from turmeric (Curcuma longa L.) | en_US |
| dc.these.type | M.Tech. | en_US |
| dc.title | Effect of microwave heating on extraction of essential oil from turmeric (Curcuma longa L.) | en_US |
| dc.type | Thesis | en_US |