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Physicochemical properties of Salvia miltiorrhiza Bunge following treatment with enzymes

효소 처리에 따른 단삼 추출물의 이화학적 특성

  • Received : 2015.09.21
  • Accepted : 2015.10.12
  • Published : 2015.10.30

Abstract

To improve the utilization of the domestic plant Salvia miltiorrhiza Bunge (Danshen), this study investigated changes in the physicochemical qualities of Danshen extracts obtained from low-temperature extraction using the enzymes amylase, cellulase, pectinase, and protease. Changes in the yield, pH, sugar content, and chromaticity were investigated. The changes were found to be highest in the amylase-treated extract with the following values: yield, 58.3%; pH, 6.04; sugar content, $5.97^{\circ}Brix$. With regard to antioxidant properties, Danshen extracts treated with amylase showed the highest DPPH and ABTS scavenging activities of 84.25% and 74.11% at 55 ppm. The total phenolic compound content was highest in the group subjected to enzyme treatment at $60^{\circ}C$. The salvianolic acid B level of the Danshen extract was the highest in the amylase-treated group, with a value of 3,002.6 mg/100 g. Cryptotanshinone level was the highest in the amylase- and protease-treated group with a value of 3.8 mg/100 g. Tanshinone I was the highest in the protease-treated group, with a value of 14.2 mg/100 g. The results showed that the indicator components of Danshen were detected as stable in the extracts after using amylase for low-temperature extraction; therefore, it would be possible to use Danshen industrially as a functional ingredient through mass production. Furthermore, the enzyme-treatment extraction could be utilized for a variety of natural products.

본 연구는 국내산 단삼을 활용하여 amylase계, cellulase계, pectinase계 및 protease계 효소제를 이용한 저온 추출법에 따른 단삼 추출물의 이화학적 품질 변화를 조사하였다. 단삼 추출물의 수율, pH, 당도 및 색도 변화는 amylase계 효소를 이용하여 $60^{\circ}C$, 4시간 처리구에서 58.3%, pH 6.04, $5.97^{\circ}Brix$와 65.06(L) 및 35.13(b)로 가장 높게 나타났으며, a값은 protease계 효소를 이용하여 $60^{\circ}C$에서 처리구에서 14.88로 붉은색을 나타내었다. 효소제를 이용한 단삼 추출물의 항산화능은 추출농도 55 ppm에서 DPPH 및 ABTs 소거능 84.25 및 74.11%로 amylase계 효소를 이용하여 $60^{\circ}C$, 4시간 처리구에서 가장 높은 소거능을 나타내었다. 총 페놀성 화합물 함량은 $60^{\circ}C$ 효소 처리구간들에서 비교적 높은 함량을 나타내었다. 단삼 추출물의 salvianolic acid B 함량은 $60^{\circ}C$에서 4시간, amylase계 효소구에서 3,002 mg%로 가장 높은 함량을 나타내었으며, cryptotanshinone 함량은 $60^{\circ}C$ 4시간 amylase 및 protease계 효소 처리구에서 3.8 mg%으로 가장 높게 나타났으며, tanshinon I함량은 $60^{\circ}C$ 4시간 protease계 효소구에서 14.2 mg%으로 가장 높게 나타났다. 이상의 결과로 amylase계 효소를 이용하여 단삼의 저온 효소 추출시 단삼 추출물의 지표성분의 안정적 추출이 가능한 바, 기능성 소재로서 대량생산을 통한 산업적 이용이 가능할 것으로 판단되며, 효소제를 이용한 저온 효소추출법은 천연물의 다양한 원료에 접목시킬 수 있을 것으로 생각된다.

Keywords

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