The kinetics and thermodynamics of hempseed oil extraction by n-hexane

被引:65
作者
Kostic, Milan D. [1 ]
Jokovic, Natasa M. [2 ]
Stamenkovic, Olivera S. [1 ]
Rajkovic, Katarina M. [3 ]
Milic, Petar S. [4 ]
Veljkovic, Vlada B. [1 ]
机构
[1] Univ Nis, Fac Technol, Leskovac 16000, Serbia
[2] Univ Nis, Dept Biol & Ecol, Fac Sci & Math, Nish 18000, Serbia
[3] High Chem & Technol Sch Profess Studies, Krusevac, Serbia
[4] High Med Sch Profess Studies, Cuprija, Serbia
关键词
Extraction; Hempseed oil; n-Hexane; Kinetics; Modeling; Thermodynamics; SUPERCRITICAL CARBON-DIOXIDE; SATIVA L. OIL; SEED OIL; ULTRASONIC EXTRACTION; OXIDATION STABILITY; ETHANOL-PRODUCTION; INDUSTRIAL HEMP; OPTIMIZATION; TRANSESTERIFICATION; BIODIESEL;
D O I
10.1016/j.indcrop.2013.11.045
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The influence of extraction temperature and seed-to-solvent ratio in the ranges of 20-70 C and 1:3-1:10 g/mL, respectively on the hempseed oil extraction by n-hexane was investigated in order to conduct both kinetic and thermodynamic analysis. For the kinetic modeling, it was assumed that washing and diffusion occurred simultaneously. A four-parameter phenomenological model fitted the experimental data with a mean relative percent deviation (MRPD) of +/-2.5% (based on 125 data). The extraction conditions did not influence the fraction of washable hempseed oil (f=0.821+/-0.006), but affected the washing and diffusion rate constants. A modified Arrhenius equation was used to correlate the rate constants with extraction temperature and solvent-to-seed ratio. Since the washing rate constant was much higher than the diffusion rate constant, the kinetics of the hempseed oil extraction could be successfully described by a simpler three-parameter model based on the assumption of instantaneous washing followed by diffusion (MRPD = +/-2.8%). The hempseed oil extraction was shown by a thermodynamical analysis to be feasible, spontaneous, endothermic and irreversible. Depending on the seed-to-solvent ratio, the hempseed oil yield increased by a factor of 1.012-1.027 for every 10 C rise in temperature. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:679 / 686
页数:8
相关论文
共 31 条
  • [1] Ahmad M., 2001, ENERG SOURCE PART A, V33, P1365
  • [2] A bioresource solvent for extraction of castor oil
    Akaranta, O
    Anusiem, ACI
    [J]. INDUSTRIAL CROPS AND PRODUCTS, 1996, 5 (04) : 273 - 277
  • [3] Analytical characterization of hemp (Cannabis sativa) seed oil from different agro-ecological zones of Pakistan
    Anwar, Farooq
    Latif, Sajid
    Ashraf, Muhammad
    [J]. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 2006, 83 (04) : 323 - 329
  • [4] Response surface optimization of hemp seed (Cannabis sativa L.) oil yield and oxidation stability by supercritical carbon dioxide extraction
    Da Porto, C.
    Voinovich, D.
    Decorti, D.
    Natolino, A.
    [J]. JOURNAL OF SUPERCRITICAL FLUIDS, 2012, 68 : 45 - 51
  • [5] Fatty acid composition and oxidation stability of hemp (Cannabis sativa L.) seed oil extracted by supercritical carbon dioxide
    Da Porto, C.
    Decorti, D.
    Tubaro, F.
    [J]. INDUSTRIAL CROPS AND PRODUCTS, 2012, 36 (01) : 401 - 404
  • [6] Deferne J.L., 1996, J INT HEMP ASS, V3, P4
  • [7] TEMPERATURE EFFECTS ON THE EXTRACTION OF RUBBER AND MELON SEED OILS
    IBEMESI, JA
    ATTAH, JC
    [J]. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1990, 67 (07) : 443 - 445
  • [8] Optimization of hempseed oil extraction by n-hexane
    Kostic, Milan D.
    Jokovic, Natasa M.
    Stamenkovic, Olivera S.
    Rajkovic, Katarina M.
    Milic, Petar S.
    Veljkovic, Vlada B.
    [J]. INDUSTRIAL CROPS AND PRODUCTS, 2013, 48 : 133 - 143
  • [9] Oil content, tocopherol composition and fatty acid patterns of the seeds of 51 Cannabis sativa L. genotypes
    Kriese, U
    Schumann, E
    Weber, WE
    Beyer, M
    Brühl, L
    Matthäus, B
    [J]. EUPHYTICA, 2004, 137 (03) : 339 - 351
  • [10] The feasibility of converting Cannabis sativa L. oil into biodiesel
    Li, Si-Yu
    Stuart, James D.
    Li, Yi
    Parnas, Richard S.
    [J]. BIORESOURCE TECHNOLOGY, 2010, 101 (21) : 8457 - 8460