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천연과즙이 알로에(Aloe vera. L)조직의 callus 배양에 미치는 효과 검정
오명원,권오민,배동녁,한구태,김대환,도건엽,이지홍,장경호,김영철,김완동,권정호,이인순,문혜연 대구대학교 산업기술연구소 2012 産業技術硏究 Vol.23 No.1
We studied the effects of natural juices as grape and apple juice on callus formation of Aloe vera. L. The condition medium for callus differentiation was made MS medium with 0.2 ㎎/ℓ IAA, 0.3 ㎎/ℓ kinetin and 100 ㎎/ℓ grape or/and apple juice. The callus tissue was induced on this medium for 21 days, but callus formation was not found. However, cut aloe tissue released an extracellular material into media after 7 days as the culture progressed. The condition medium with grape juice brought to decrease cellular metabolism due to synthesis phenol and flavonoid which may resulted by necrosis of tissues like browning reaction. The an extracellular material and aloe tissue were extracted by as a solvent from medium, cultured aloe tissue and natural aloe tissue and those extracts were analysed for the determinate the concentration of phenol, flavonoid and vitamin C content. In the result, the control medium without addition of natural juice had increased of phenol compound and flavonoid content. The condition medium with addition of apple juice had higher content of flavonoid and vitamin C compared with other extracts. As a result, a composition of the apple juice stimulate metabolism of functional material synthesis.
천연과즙을 이용한 Aloe vera L.의 callus 배양과 이들 추출물의 항산화 및 항균활성 효과 검정
이인순(In-Soon Lee),배동녁(Dong Nyeok Bae),권오민(Oh Min Kwon),한구태(Gu Tai Han),김대환(Dae Hwan Kim),오명원(Myeong Won Oh),이지홍(Ji Hong Lee),문혜원(Hae-Yeon Moon) 한국생물공학회 2013 KSBB Journal Vol.28 No.6
In order to obtain functional materials from aloe callus, we cultured Aloe vera L. leaf on MS medium added 0.2 mg/L IAA, 0.3 mg/L kinetin and 100 mg/L grape or/and apple juice for 30 days. While a callus differentiation during callus culture did not show, the cultured leaves were uniquely released extracellular material into the agar plate. After cultivation for 18 days, the cultured leaf and agar were harvested for extraction a functional material. The materials extracted were measured on the amount of total phenols, flavonoids and polysaccharides and determined on the antioxidant and antimicrobial activity. In result, callus extracts of additive free (CT) and added apple juice (2T) had more amount of phenol compound (659 μg/mL, 533 μg/mL) and flavonoid (580 μg/ mL, 501 μg/mL) than natural leaf (p: 525 μg/mL, f: 301 μg/ mL). However, the extract of natural leaf had the better effect of lipid peroxidation and polysaccharide content than the culture extract. All samples extracted had same effect on the nitrite scavenging activity. On the other hand, only 2T extract showed excellent 72% nitric oxide scavenging activity. The agar extract was also confirmed to contain polyphenol compound and polysaccharide content that had antioxidant and antimicrobial activity partly.