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Effect of Composts Fermented with Korean Medicinal Herb Wastes on Physiological Activity of Rubus coreanus Miquel (Bokbunja)

한약탕제찌꺼기 발효퇴비 처리에 따른 복분자과실의 생리활성

  • Kim, Seong-Jo (Department of Food and Environmental Sciences, Wonkwang University) ;
  • Kim, Jae-Young (Department of Food and Environmental Sciences, Wonkwang University) ;
  • Baek, Seung-Hwa (Department of Biofood Science and Biotechnology, Chungbuk Provincial University)
  • 김성조 (원광대학교 식품.환경학과) ;
  • 김재영 (원광대학교 식품.환경학과) ;
  • 백승화 (충북도립대학교 바이오식품생명과학과)
  • Received : 2011.04.05
  • Accepted : 2011.04.20
  • Published : 2011.04.30

Abstract

Fermented compost made from medicinal herb wastes (MHWC) as an environment-friendly manure resource was applied to determine physiological activities of Rubus coreanus Miquel (Bokbunja). MHWC, poultry manure compost (PMC), and MHWC+PMC (1:1, w/w) were applied to 2 year-old Bokbunja plant at levels of 0, 20, 40 Mg/ha, respectively. Physiological activities of Bokbunja were investigated at 15, 20 and 25 days after flowering (DAF). Content of total phenolics in fruit was high in order of 25 > 20 > 15 DAF, showing highest value in fruit treated with MHWC at 40 Mg/ha. The flavonoid level showed same pattern to total phenolics. Electron donation abilities at fruits at 15 and 20 DAF were higher than at 25 DAF. Nitrite scavenging ability (NSA) was increased on in order of pH 1.2 > 4.2 > 6.0. NSA in fruit at 15 and 20 DAF was higher than at 25 DAF. Tyrosinase inhibition ability at fruits treated with MHWC showed the highest value among all composts. Xanthine oxidase inhibition ability in fruit treated with MHWC at 25 DAF was the highest. In conclusion, physiological activities of Rubus coreanus Miquel (Bokbunja) were improved in MHWC group.

본 연구는 한약탕제 찌꺼기를 친환경 퇴비자원으로서 재활용하기 위하여 발효과정을 거친 퇴비(MHWC: medicinal herb waste compost)와 계분퇴비(PMC: poultry manure compost) 및 이를 혼합한 퇴비(MHWC+PMC, 1:1)를 식재 2년생 복분자 포장에 무처리(0), 20, 40 Mg/ha로 처리하여 꽃이 첫 개화한 시기를 기점으로 15, 20, 25 DAF(day after flowering)를 수확시기로 하여 수확한 복분자 과실의 생리활성을 조사하여 비교한 결과는 다음과 같다. 복분자의 총 페놀성 화합물 함량은 15 DAF 과실에서와는 달리 20, 25 DAF 과실에서 유의성 있는 증가를 보였다(p<0.05). 수확시기별로는 25>20>15 DAF 순이었고, 그 함량은 40 MHWC Mg/ha가 가장 높았다. Flavonoid 함량변화는 총 페놀성 화합물 함량변화와 유사하였다. 전자공여효과는 15, 20 DAF 과실에서는 차이가 없었지만, 25 DAF 과실에서는 낮은 효과를 나타내었다. 아질산염 소거효과는 pH 1.2>4.2>6.0 순으로 pH 의존적인 경향이었으며 15, 20 DAF 과실보다 25 DAF 과실이 저하되었다. Tyrosinase 저해효과는 MHWC 처리구가 가장 우수하고 처리량에 따라 저해효과가 증가되었으며 15, 20 DAF 과실은 25 DAF 과실보다 낮은 효과를 보였다. Xanthine oxidase 저해활성은 25 DAF 과실의 MHWC 처리구에서 가장 높았고, PMC 및 MHWC+PMC처리구와 UC와의 차이는 인정하기 어려웠다. 이상의 결과에서 MHWC 처리에 따른 복분자 과실의 생리활성이 증가경향을 보여 친환경퇴비자원으로서 가치가 있는 것으로 사료되었다.

Keywords

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