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Physicochemical properties of Sancho (Zanthoxylum schinifolium) seeds oil base extracts from different method

추출방법에 따른 산초 종자 정유성분의 이화학적 특성

  • Jung, Mi Seun (Department of Food Science, Gyeongnam National University of Science and Technology) ;
  • Shin, Yeon Mi (Department of Food Science, Gyeongnam National University of Science and Technology) ;
  • Kim, Myeong Kyu (Department of Mechanical Engineering, Gyeongnam National University of Science and Technology) ;
  • Kim, Chul Ho (Department of Pharmaceutical Engineering, Gyeongnam National University of Science and Technology) ;
  • Choi, Jine Shang (Department of Food Science, Gyeongnam National University of Science and Technology)
  • 정미선 (경남과학기술대학교 식품과학부) ;
  • 신연미 (경남과학기술대학교 식품과학부) ;
  • 김명규 (경남과학기술대학교 기계공학과) ;
  • 김철호 (경남과학기술대학교 제약공학과) ;
  • 최진상 (경남과학기술대학교 식품과학부)
  • Received : 2013.08.17
  • Accepted : 2013.11.18
  • Published : 2013.12.30

Abstract

In this study we investigated physicochemical properties of Zanthoxylum schinifolium seeds oil base extracts. Supercritical fluid extraction (SFE), roast pressure (RPM) and steam pressure (SPM) method were used for oil base extracts. The pressure and temperature conditions of SFE method were $70{\sim}80kgf/cm^2$ and below $30^{\circ}C$, respectively, by newly designed SFE-$CO_2$ system. The yield of extraction was 38.5% at the SFE method and others were 30% in each. Refractive index of oil base extracts, there was also no difference between them as 1.470~1.473. At the SFE method, viscosity observed higher value better than two method that showed as 181.88~209.93 according to the extraction time. Three oil base extracts showed difference in color which was low in b value at SFE, especially. The result of acid value at RPM that was lower as 0.93 mg/g than 2.36~2.64 mg/g of SFE method. Saponification value ranged $182.96{\sim}196.57mg{\cdot}KOH/g$ in three extraction method. At SPM, TBA value showed as 158.96 mg/kg, but in the SFE method ranged higher value as 201.30~347.14 mg/kg. Fatty acids analysed with 18 varieties in all oil base extracts and the composition of saturated/unsaturated fatty acids was 17:83(v/v) at SEF. Especially, ${\omega}$-3,6,9 fatty acids observed at SFE and SPM, but did not appeared at RPM. Fatty acid of ${\omega}$-6,9 detected in all cases.

추출방법을 달리하여 산초 종자의 정유성분을 추출하였다. 초임계유체추출법은 24, 48 및 72 시간으로 구분하였고, 압착법은 볶음 및 증숙 처리하여 추출한 후 이화학적 특성을 분석하였다. 압착법에 의한 추출수율은 전처리 방법에 관계없이 30%로 동일하였으나 초임계유체 추출시는 추출시간이 길어질수록 수율이 증가하여 72 시간 추출하였을 때 38.5%로 가장 높았다. 각각의 방법에 따라 추출된 산초유의 비중과 굴절율은 각각 0.920~0.297과 1.470~1.473의 범위로서 차이를 나타내지 않았다. 점도는 볶음압착법에서 $115.23{\pm}8.85$ cP로 가장 낮았고, 초임계유체 추출시 $181.88{\pm}4.8{\sim}209.03{\pm}1.8$ cP의 범위로 증가하였다. 추출법에 따른 유지의 색도 중 황색도는 초임계유체 추출시 3.81~8.37 범위였으나 압착추출시는 29.14~29.36으로 유의적으로 높아 추출방법에 따라 큰 차이를 보였다. 산가는 증숙압착법으로 추출하였을 때 $0.93{\pm}0.01mg/g$으로 가장 낮았으며, 초임계유체 추출시 추출시간에 따른 유의차는 없었다. 검화가는 182.96~196.57 mg/KOH g의 범위로서 추출방법에 따른 차이가 없었고, TBA가는 158.96~347.14 mg/kg의 범위로 초임계 추출 시간이 길어질수록 증가하였다. 초임계 유체 및 증숙처리에 의한 정유성분에서는 ${\omega}$-3 계열의 linolenic acid를 포함하였으나 볶음처리 추출에서는 측정되지 않았으며, 포화지방산보다 불포화지방산의 함량(17:83, v/v)이 더 많았다.

Keywords

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  2. Physicochemical Properties of Some Seed Oil extracted by Pressure Method vol.49, pp.4, 2015, https://doi.org/10.14397/jals.2015.49.4.221