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Changes of Methyl trans-cinnamate Levels During Fruit-body Development in Tricholoma matsutake
이위영,박영기,안진권,가강현 한국산림과학회 2005 한국산림과학회지 Vol.94 No.5
The relationship between the contents of methyl trans-cinnamate and the ratio of DP/DS (diameter of pileus / diameter of stalk) in the fruit-body of Tricholoma matsutake during its development was investigated. The stages of development were divided as follows: stage A is less than 1, stage B is from 1 to less than 2, stage C is from 2 to less than 3, and stage D is more than 3 of the values of DP/DS. The contents of methyl trans-cinnamate in pileus and stalk of pine mushroom ranged from 77 mg/g to 824 mg/g and from 7.6 mg/g to 22.4 mg/g, respectively during its development. In the part of pileus, there is no relevance of the methyl trans-cinnamate content of pine mushroom between the stage A and B, but there was significantly different among the stage of B, C and D. In the case of stalk, the relevance of the methyl trans-cinnamate content of pine mushroom between stage D and other stages showed a low difference. In addition, as pileus of pine mushroom developed the level of the aroma compound increased as well and showed higher correlation relationship (r2=0.877) between the contents of methyl trans-cinnamate in the pileus and the ratio of DP/DS. From the results of this study, we can conclude that the aromatic component of pine mushroom can be deduced from the value of DP/DS, which indicates the stage of the development appearance.
이위영,나성준,박응준,한상억 한국자원식물학회 2014 한국자원식물학회지 Vol.27 No.4
참나무류 종실에 대한 수종별 성분함량 특성을 비교하기 위하여 동일 환경조건에서 생산된 채종원산 상수리나무, 졸참나무, 굴참나무 및 신갈나무 종실의 전체 페놀, 탄닌류, 아미노산,무기원소, 식이섬유소, 베타카로틴 등의 함량을 분석하였다. 탄닌의 함량은 수종간에 유의적 차이(p < 0.05)가 있었다. 졸참나무에서 79 ㎎/g으로 가장 높았고, 이외 수종은 62 ㎎/g 전후로 유사한 함량을 나타냈다. 수용성 탄닌 함량은 졸참나무가 71 ㎎/g을, 이외의 수종은 45 ㎎/g 전후로 나타났다. 반면 비수용성 탄닌 함량은 졸참나무가 8.2 ㎎/g으로 가장 낮았고, 굴참나무23.5 ㎎/g으로 가장 높게 함유하고 있는 것으로 나타났다. 전체식이섬유소 함량은 신갈나무 종실이 42%로 가장 높았고 졸참나무 38%, 상수리 및 굴참나무가 26% 전후로, 특히 졸참나무와 상수리나무의 클론간의 식이섬유소 함량을 비교한 결과 두 수종간에 유의적 차이(p < 0.01)가 있었다. 무기성분 및 아미노산 함량은 신갈나무 종실이 다른 수종에 비해 높게 함유하는 경향이었다. 반면 베타카로틴은 신갈나무가 10 ㎍/100 g으로 가장 낮았고 굴참나무가 520 ㎍/100 g으로 가장 높은 경향이었다. 이상의 결과로 참나무 수종에 따른 도토리의 페놀성 화합물이나 영양성분의 함량은 수종 간에 차이가 있어 참나무 도토리의 종류에 따라 맛이나 영양학적으로 차이가 있을 것으로 추정된다. Nutritional composition, including total phenolics, tannins and nutrient components, of acorns of Q. actissima, Q. serrata, Q. variabilis and Q. mongolica were analyzed. Acorns were collected from each tree species, which were grown in a seed orchard. Contents of both total phenolics and tannins in acorns of Q. serrata were higher than those of Q. actissima (p < 0.05). Interestingly, Q. serrata contained the highest amount of water soluble tannins (71 ㎎/g dw) and the lowest levels of water insoluble tannins (8.1 ㎎/g dw) among 4 oak species, resulting that acorns of Q. serrata had the lowest proportion of insoluble tannins. Among 4 oak species tested, Q. mongolicav acorns contained the highest levels of both total dietary fiber (TDF) and ascorbic acid, while the content of beta-carotene in Q. mongolicav was 52-fold lower than that in Q. variabilis (520 ㎍/100 g). Our result showed that nutritional composition of acoms was significantly different between oak species, indicating that tastes or nutritional values might be different as well among major oak species in Korea.
Production of Anthraquinones of Polygonum multiflorum in Vivo and in Vitro
이위영,안진권,김승택,박응준 한국원예학회 2009 Horticulture, Environment, and Biotechnology Vol.50 No.4
Root growth and anthraquinones production of Polygonum multiflorum were investigated under various conditions in vivo and in vitro treated with different concentrations of sucrose, MS salts and auxins (IBA, IAA and NAA). First we analyzed the anthraquinone levels in various tissues of the field-grown plants to find that the highest accumulation was found in the root tissues. In vitro root growth of nodal segments was significantly affected by the amount of sucrose (30 g・L-1) in the medium, but not by the concentration of MS salts. Among various auxins tested, IBA treatment (0.5 mg・L-1) significantly stimulated the root growth, compared with the treatments of either IAA or NAA. Although the physcion contents (μg・g-1 DW) were reduced 3.8-fold at the maximum as the IBA concentrations were increased from 0.1 to 1.0 mg・L-1, total anthraquinone contents (μg・100 mL-1) of both rhein and emodin were not significantly lowered, due to the inhibitory effect of IBA. In the present study, we developed an efficient in vitro root culture system for Polygonum multiflorum, which provides further data for a large-scale bioprocessing of this plant.
이위영,한상억 한국육종학회 2012 한국육종학회지 Vol.44 No.3
사시나무의 생장 특성과 대사물질간의 관계를 구명하여 생장추정 관련 주요 인자를 구명하고자 사시나무 18년생을 대상으로 우량 클론과 일반 클론간의 생장특성 및 생장하고 있는 주간 내피조직의 대사물질을 비교, 분석하였다. 사시나무 생장특성과 주간 내피조직의 전탄소 함량, 전질소 함량, δ15N값 및 sucrose 함량 간에 유의적 상관관계가 있었다. 특히 유리 아미노산의 함량은 재적 및 흉고직경과 고도의 정의 상관관계(p<0.01)가 있어 수체내의 질소함량이 높을수록 생장이 우수한 것으로 나타났다. GC/MS를 이용하여 사시나무 클론 간의 대사체를 분석한 결과 78종의 대사물질 중 51종이 재적생장과 상관관계가 있었으며, 주간 내피조직의 succinic acid, malic acid, citric acid, sucrose 및 phosphoric acid의 함량이 상대적으로 높을수록 재적 생장이 큰 것으로 추정되었다. 또한 사시나무 생장 우량클론은 주간 내피조직의 수용성 sucrose 및 유리 아미노산 함량이 상대적으로 높은 것으로 나타났다. 이러한 복합적 인자는 사시나무 우량클론 선발을 위한 대사 표지자의 개발을 위한 기초 자료로 이용될 수 있을 것이다. In order to identify key metabolic components in the regulation of growth of Populus davidiana Dode, clonal growth performances in a field trial at the 18-year-old stage were compared with metabolic profiles in developing inner bark of the corresponding clones. Clonal biomass accumulation was significantly correlated with the levels of total carbon, total nitrogen, δ15 N, and sucrose. Interestingly, the concentrations of both total nitrogen and free amino acids showed strong correlations with diameter of breast height, height and stem volume (p < 0.01), indicating that the more nitrogen in developing xylem stimulated the better growth. Among 78 metabolites, the contents of 51 individual metabolites including succinic acid, malic acid, citric acid, sucrose and phosphoric acid, had significant correlation with volume growth. In addition, superior clones contained relatively higher levels of free amino acids and sucrose compared with other clones. These results would furthermore provide precedence for the utility of metabolic profiling data to extract biomarkers with high predictive power for a complex trait.