http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조유진 ( Eugene Cho ),김현우 ( Hyoun-woo Kim ),백효은 ( Hyo-eun Baek ),김현석 ( Hyeon-seok Kim ),조건웅 ( Geon-ung Jo ),박세이 ( Se-i Park ),오찬진 ( Chan-jin Oh ),오득실 ( Deuk-sil Oh ),김진 ( Jin Kim ) 조선대학교 공학기술연구원 2020 공학기술논문지 Vol.13 No.1
Ten species belonging to the genus Dicranopteris are distributed throughout the world and Dicranopteris pedeta (Houtt.) Nakaike is distributed in Korea. In this study, the antioxidant and anticancer activities of Dicranopteris pedeta aqueous extract was explored. Antioxidant activity of Dicranopteris pedeta aqueous extract was revealed with a range of 38% to 74% in the DPPH radicals test. The total polyphenols and flavonoids contents of aqueous extract were 92.5 ± 8.68 mg GAE/g and 28.04 ± 4.08 mg QE/g, respectively. Protocatechuic acid, gentisic acid, rutin, vanillic acid, hesperidin, oxyresveratrol, quercetin, and naringenin were detected by HPLC. Cytotoxicity test was conducted using MTT assay in normal cells 293T, cancer cells of YD-10B and HeLa. In the cytotoxicity test, aqueous extract did not show toxicity to normal cells but inhibited cancer cell proliferation. These results suggest that aqueous extracts of Dicroanopteris pedeta could potentially be developed as a functional cosmetics or anticancer agents.
탄닌산 분해 효소 처리에 따른 감 추출물 유효성분 변화 및 항산화능 활성 분석
조유진 ( Eugene Cho ),오찬진 ( Chan Jin Oh ),조건웅 ( Geon Ung Cho ),김현석 ( Hyun Suk Kim ),홍주희 ( Joo Hee Hong ),박세이 ( Se I Park ),김현우 ( Hyoun Woo Kim ) 조선대학교 공학기술연구원 2020 공학기술논문지 Vol.13 No.3
Persimmons (Diospyros kaki Thub.) are produced mainly in the southern regions by 188,083 tons on an area of 11,132 ha, but only about 50% of the total is processed and consumed. This study attempted to find a way to increase the value of persimmon. Upon the measurement of the antioxidant activity (DPPH) of the persimmon extract at each site, it was found that an antioxidant activity of about 40% was highest in the immature pulp of the hydrothermal and ethanol (EtOH) extracts. As a result of analyzing 14 active ingredients or phenolic compounds by LC/MS/MS, it was discovered that the content of gallic acid was generally high. Therefore, the index component was selected as gallic acid and was referred to in the experiment. Previously, it was reported that when tannin acid was decomposed, the gallic acid content increased. Meanwhile, the gallic acid content increased by 3-4 times, as a result of Tannase treatment, following the change of the active ingredient in the extract. Based on these results, it is believed that developing a product that is utilized as a functional material is possible by increasing the active ingredient through tannic acid decomposition enzyme treatment of persimmon extract.