피복물 종류에 따른 더덕의 생육 및 항산화 물질 비교

다국어 초록 (Multilingual Abstract)

Background: This study determined the effects of mulching, an environment friendly organic cultivation method, on antioxidant compound contents and growth in Codonopsis lanceolata, commonly known as Deodeok.
Methods and Results: C. lanceolata was treated by mulching with several different methods (a non-woven fabric, biodegradable film, or rice husks) and also treated with hand weeding. A non-treatment plot was used as a control. The growth and levels of weed control in C. lanceolata were better in plants cultivated under mulching treatments (non-woven fabric, biodegradable film, and rice husks) than in those under non-mulching treatments (hand weeding and non-treatment). The contents of antioxidant compounds, such as total flavonoids, phenolics, and anthocyanins, were highest under the biodegradable film treatment, followed by the nonwoven fabric treatment, rice husks treatment hand weeding, and non-treatment. There were identifiable differences in DPPH and ABTS activity in comparison to antioxidant compound content by solvent fractions. Mulching treatments resulted in higher DPPH scavenging activity in water and ethyl ether fractions and ABTS scavenging activity in n-butanol fractions than in other fractions, as opposed to hand weeding and non-treatment groups, although total activity of DPPH and ABTS did not increase with mulching treatments.
Conclusions: Mulching C. lanceolata with biodegradable film and non-woven fabric is an effective method for improving plant growth and inhibiting the occurrence of weeds as well as for increasing antioxidant compound content and altering antioxidant activity.

목차 (Table of Contents)

• 서 언
• 재료 및 방법
• 1. 재료 및 처리 방법
• 2. 더덕 추출물 제조 및 유기용매 분획
• 3. 생육특성 조사
• 4. 토양 수분지온 및 잡초발생량 조사
• 5. Total flavonoid 함량 측정
• 6. Total phenolic compounds 함량 측정
• 7. Anthocyanin 함량 측정
• 8. DPPH와 ABTS radical 소거활성
• 9. 통계처리
• 결과 및 고찰
• 1. 피복물 종류에 따른 토양 수분 및 지온 변화 및 생육조사
• 2. 피복물처리에 따른 잡초발생량
• 3. 피복물 처리에 따른 항산화 물질 분석
• 4. 항산화 활성
• REFERENCES

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