• Title/Summary/Keyword: seed composition

Search Result 577, Processing Time 0.042 seconds

Seed Protein Content and Fatty Acid Composition of Black Seeded Soybeans Collected From Southwestern Islands (서남해안 검정콩들의 단백질과 지방산 조성변이)

  • 권병선;신정식
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.47 no.3
    • /
    • pp.240-243
    • /
    • 2002
  • A total of 135 black seeded soybeans genotypes were collected in 45 island locations from January to May 2001. Seeds of 135 genotypes collected were analyzed for crude protein and fatty acid compositions. The crude protein content was averaged to be 40.75%, and was ranged from 34.70% to 44.20%. The average palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid content were 11.41%, 3.93%, 22.75%, 53.55%, and 8.35%, and the ranges of those were 9.00% to 14.40%, 2.90% to 5.00%, 22.75% to 26.50%, 50.30% to 57.20% and 6.7% to 11.20%, respectively. Heritabilities of palmitic acid, oleic acid, linoleic acid, and crude protein were higher, but that of stearic acid and linolenic acid were relatively lower, Crude protein content was correlated positively with oleic acid content, whereas it was correlated negatively with linoleic acid, palmitic acid, stearic acid, and linolenic acid contents.

The optimal balance between sexual and asexual reproduction in variable environments: a systematic review

  • Yang, Yun Young;Kim, Jae Geun
    • Journal of Ecology and Environment
    • /
    • v.40 no.2
    • /
    • pp.89-106
    • /
    • 2016
  • Many plant species have two modes of reproduction: sexual and asexual. Both modes of reproduction have often been viewed as adaptations to temporally or spatially variable environments. The plant should adjust partitioning to match changes in the estimated success of the two reproductive modes. Perennial plants showed that favorable habitats in soil nutrients or water content tend to promote clonal growth over sexual reproduction. In contrast, under high light-quantity conditions, clonal plants tend to allocate more biomass to sexual reproduction and less to clonal propagation. On the other hand, plants with chasmogamous and cleistogamous flowers provides with a greater tendency of the opportunity to ensure some seed set in any stressful environmental conditions such as low light, low soil nutrients, or low soil moisture. It is considered that vegetative reproduction has high competitive ability and is the major means to expand established population of perennial plants, whereas cleistogamous reproduction is insurance to persist in stressful sites due to being strong. Chasmogamous reproduction mainly enhances established and new population. Therefore, the functions of sexual and asexual propagules of perennial or annual plants differ from each other. These traits of propagule thus determine its success at a particular region of any environmental gradients. Eventually, if environmental resources or stress levels change in either space or time, species composition will probably also change. The reason based on which the plants differ with respect to favored reproduction modes in each environmental condition, may be involved in their specific realized niche.

Effect of Dietary Conjugated Linoleic Acid on Lipid Characteristics of Egg Yolk

  • Hur, Sun-Jin;Kang, Geun-Ho;Jeong, Jin-Yeun;Yang, Han-Sul;Ha, Yeong-Lae;Park, Gu-Boo;Joo, Seon-Tea
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.16 no.8
    • /
    • pp.1165-1170
    • /
    • 2003
  • A total of 250 laying hens were fed a diet containing 0, 1, 2.5 or 5% conjugated linoleic acid (CLA), and 5% Safflower seed oil (SSO) for 5 weeks, and eggs were collected by week to analyse lipid characteristics of egg yolk. Egg yolk from CLA-fed groups showed significant increase in CLA content with increased CLA in the diet. Dietary CLA also increased the ratio of saturated fatty acids and decreased unsaturated fatty acids in the egg yolk. The proportion of myristic, palmitic, stearic and CLA were increased, while those of oleic, linoleic, linolenic and arachidonic acid were decreased. The cholesterol content in egg yolk was significantly decreased by dietary CLA for 5 weeks feeding. After 7 days of feeding, 5% CLA-fed group showed the lowest cholesterol content in egg yolk. CLAfed groups showed significantly lower 2-thiobarbituric acid-reactive substances (TBARS) values compared to control and SSO-fed group after 14 days of storage. No significant differences in TBARS values among CLA-fed groups were observed at the 28 days of storage. Results suggested that lipid oxidation of egg yolk during cold storage could be inhibited by dietary CLA due not only to changes in fatty acid composition but also to the high concentration of CLA in egg yolk.

Changes in Lipid Composition of Korean Red Pepper(Capsicum annuum) during Processing and Storage (고추 가공 및 저장 조건에 따른 지질성분의 변화)

  • Hwang, Seong-Yun;Cho, Dae-Hee;Jo, Jae-Sun
    • Journal of the Korean Society of Food Culture
    • /
    • v.13 no.5
    • /
    • pp.519-528
    • /
    • 1998
  • This study was conducted to investigate the changes in lipid components of red pepper under various processing conditions such as drying, exposing to lights, extraction and storage conditions. The material used in this study were Chungyang cultivars which contained the largest amount of capsaicinoids and Dabok cultivars which is most popular among the various cultivars produced in Korea. Total lipid content of Chungyang was 15.7% and those of Dabok, Udeungsang and Hongilpum were about 17%. The neutral lipid content in free lipid of red pepper was $78.5{\sim}80.3%$ Phospholipid and glycolipid content in bound lipid were $53.8{\sim}56.9%$ and $35.3{\sim}38.7%$ respectively. The major fatty acids of lipid were linoleic, palmitic and oleic acid. Linoleic acid was presented mainly in pericarp, seed and placenta, whereas the most of palmitic acid was presented in stem. Lipid content of cut and whole red pepper were decreased $24.7{\sim}28%$ and $18.1{\sim}21.5%$ by drying for 48hrs at $65^{\circ}C$ and $95^{\circ}C$. And lipid content was also decreased $3.5{\sim}3.6%$ when the red pepper powder was exposed to 15,000 lux of incandescent light for 30 days at $40^{\circ}C$ and $4{\sim}4.9%$ to fluorescent light. The lipid was extracted the highest content of $50.5{\sim}51.7%$ by acid solution(pH2) and the lowest content by neutral solution, and the higher the salt concentration, the greater the lipid was extracted. During storage at $4^{\circ}C,\;25^{\circ}C,\;40^{\circ}C$, for 30 days the lipid content was not much changed but linoleic acid content was decreased during storage at the same conditions.

  • PDF

Light Quality on Nutritional Composition and Isoflavones Content in Soybean Sprouts (콩나물의 영양성분과 Isoflavones 함량에 미치는 광질의 효과)

  • Chi Hee Youn;Roh Jae-Seung;Kim Jung Tae;Lee Sun Joo;Kim Mi Jung;Hahn Sang Joon;Chung Ill Min
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.50 no.6
    • /
    • pp.415-418
    • /
    • 2005
  • This objective of this study was to determine the characteristics of nutrition and isoflavone under light with soybean sprouts. Crude protein and crude fat content in green soybean sprouts were higher than common soybean sprouts. Aspartic acid and vitamin $B_1$, $B_2$, C and E content in green soybean sprouts were much higher than general. Green soybean sprouts had crude fiber con­tent slightly larger than normal. Mineral and vitamin C content in isomeal were three to five times larger than aspameal. Daidzein content in green soybean sprouts was 82.3 times larger than soybean seed. Also genistein content was increased 17.5 times.

Determination of Fatty Acid Composition in Peanut Seed by Near Infrared Reflectance Spectroscopy

  • Lee, Jeong Min;Pae, Suk-Bok;Choung, Myoung-Gun;Lee, Myoung-Hee;Kim, Sung-Up;Oh, Eun-young;Oh, Ki-Won;Jung, Chan-Sik;Oh, In Seok
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.61 no.1
    • /
    • pp.64-69
    • /
    • 2016
  • This study was conducted to develop a fast and efficient screening method to determine the quantity of fatty acid in peanut oil for high oleate breeding program. A total of 329 peanut samples were used in this study, 227 of which were considered in the calibration equation development and 102 were utilized for validation, using near infrared reflectance spectroscopy (NIRS). The NIRS equations for all the seven fatty acids had low standard error of calibration (SEC) values, while high R2 values of 0.983 and 0.991 were obtained for oleic and linoleic acids, respectively in the calibration equation. Furthermore, the predicted means of the two main fatty acids in the calibration equation were very similar to the means based on gas chromatography (GC) analysis, ranging from 36.7 to 77.1% for oleic acid and 7.1 to 42.7% for linoleic acid. Based on the standard error of prediction (SEP), bias values, and $R^2$ statistics, the NIRS fatty acid equations were accurately predicted the concentrations of oleic and linoleic acids of the validation sample set. These results suggest that NIRS equations of oleic and linoleic acid can be used as a rapid mass screening method for fatty acid content analysis in peanut breeding program.

Pilot Production of Bacterial Cellulose by Gluconacetobacter hansenii TL-2C (Gluconacetobacter hansenii TL-2C에 의한 Bacterial Cellulose의 Pilot 생산)

  • Jeong, Ji-Suk;Kim, Jong-Sun;Choi, Kyoung-Ho
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.36 no.10
    • /
    • pp.1341-1350
    • /
    • 2007
  • This study was designed to ultimately develop a highly efficient mass production technology of bacterial cellulose isolated from the citrus gel fermented by G. hansenii TL-2C. Pilot equipment made with FRP vessel length (665 mm) ${\times}$ width (375 mm) ${\times}$ height (210 mm) was developed for mass production of the citrus gel. To develop the optimal conditions for mass production of citrus gel, comprised of citrus juice (6,000 mL) diluted 100 times, containing 5% seed bacteria, 10% sucrose, and 1% ethanol, citrus juice was fermented at $30^{\circ}C$ for 14 days, and gel productivity in pilot system was examined. BC was isolated and purified from the citrus gel, and their chemical composition and physicochemical properties were investigated.

우리나라 S/W 벤처기업의 경영현황

  • 한계섭;손성호
    • Proceedings of the Korea Association of Information Systems Conference
    • /
    • 2000.11a
    • /
    • pp.26-31
    • /
    • 2000
  • It is said that the focus of managing venture business is currently moving from technology competition to management competition. By the way, the software venture business(SVB) has some weak points in its structural composition and itematization and no professional personnel in other several sections except technology development section. In addition, such basic functions as technology and R & D, finance and accounting, marketing required to the management of business are concentrated on only one man, its representative director. Therefore, this study aims to provide the basic data useful to the establishment of governmental policy in information and communication, to the rearing of the SVB by a local government related to the software, and to the administration of SVB by investigating the actual conditions. This study attempts to examine the literature on venture business and software industry, and its management with a questionnaire about the actual conditions of managing the SVB. The questionnaire is given to 527 local enterprises belonging to the Software Industry Association and to 171 enterprises in the Software Center. This study compromises the characteristics of the SVB, the actual conditions of its technology and R & D, finance and accounting, and marketing. The characteristics of the SVB are classified into categories such as the stage of its growth(the stage of its seed and start-up, the stage of tis development and growth, the stage of its stability and maturity) and the main business(the system integration, the software development for contract, the package software development service, the software-related service). Additionally, the study attempts to analyze positively the actual condition of its management after classified by the areas of business profile, its general management, its technology development, its finance and accounting, and its marketing The result of this study is found that the SVB has a lot of troubles in part of marketing and finance & accounting activity as well as general management. The SVB realizes the importance of the technology development rather than that of management activity including marketing activity. So we expect this study can assist the SVB to establish the business guidelines for own management plans.

  • PDF

Comparison of Physicochemical and Sensory Characteristics of Soybean Sprouts from Different Cultivars (나물콩 품종별 콩나물의 물리화학적 및 관능적 특성 비교)

  • Kim, Sung-Soo;Hong, Hee-Do;Lee, Jin-Yeol;Choi, Hee-Don
    • Applied Biological Chemistry
    • /
    • v.43 no.3
    • /
    • pp.207-212
    • /
    • 2000
  • Physicochemical and sensory characteristics of soybean sprouts from domestic and foreign soybean cultivars were investigated. 100-seed weights of domestic cultivars were much larger than that of Canadian cultivar and recommended cultivars were larger than traditional cultivars. Water absorption of soybeans increased sharply to initial 6 hrs during steeping, and did not change much thereafter. In all soybean cultivars 16 amino acids were detected and the contents of Asp, Glu, Lys and Arg were more than 50% of total amino acid contents. All soybean cultivars showed some difference in composition of fatty acids and the content of linoleic acid was highest. The contents of K and P were high and those of Fe and Zn were low. The compression force of hypocotyl after cultivation was the highest in Eunha and the lowest in Junjeori and the compression force of cotyledon was the highest in Danyeop and the lowest in Canadian cultivar. Qualitative discription analysis for cooked soybean sprouts and soups showed significant difference in 6 characteristics of yellowness of cotyledon, size of cotyledon and so on.

  • PDF

Physico-chemical Characteristics and Utilization of Raw Materials for Mushroom Substrates (버섯 병재배 배지재료의 이화학성과 활용)

  • Cheong, Jong-Chun;Jhune, Chang-Sung;Lee, Chan-Jung;Oh, Jin-A
    • The Korean Journal of Mycology
    • /
    • v.38 no.2
    • /
    • pp.136-141
    • /
    • 2010
  • To provide a basic information on the chemical concentrations of different raw materials used in mushroom cultivation, the raw materials were collected from 13 Flammulina velutipes, 14 Pleurotus eryngii, and 8 P. ostreatus farms and analyzed to calculate moisture contents, pH, total carbon(T-C), total nitrate(T-N), total phosphate(T-P) and 13 different cations. In our results, the C : N ratios of cotton seed meal, beet pulp, and corn-cob were 6~17, 12~29 and 56~127, respectively. Depending on the companies which process these materials, the range of C:N ratio of soybean curd residue was approximately either 8~9 or 14~17 with wider range of C : N ratio of the raw materials imported from other countries without the detection of heavy metals. In this study, the formula was provided to calculate the composition of mixed media for mushroom cultivation based on the ingredient chart of different raw materials.