• KOREAN JOURNAL OF CROP SCIENCE
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• v.45 no.3
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• pp.203-206
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• 2000

Although lignans of sesame seed, sesamolin and sesamin have been known as possessing an antioxidant activity, it is less known about their contents of the sesame cultivated in Korea. Collections of sesame cultivated in Korea were used for studies on their lignans content of the seed and fatty acids composition of the oil. The sesamin content of sesame seed with white-coat were 370.29 mg/100g seed, while that of sesame seed with black-coat were 246.58mg/100g seed. Also, the sesamolin contents of sesame seed were 202.22 mg/100g seed in white-coat cultivars and 132.68 mg/100g seed in black-coat sesames. Hence, the lignan content of white-coat sesame cultivars was significantly hi임or than that of black-coat ones. Korean sesame cultivars also showed considerably higher sesamin content than sesamolin content in seeds. The correlation between sesamin and sesamolin contents was not recognized in Korean sesame cultivars. The stearic acid of white-coat sesame was significantly higher than that of black-coat one (p＜0.05).

• Journal of the Society of Cosmetic Scientists of Korea
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• v.46 no.3
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• pp.283-294
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• 2020

In this study, in order to increase the utilization of Citrus junos seeds, which account for 13% of the weight ratio of Citrus junos ripened fruit, but are mostly discarded and not utilized, the efficacy of skin beauty of Citrus junos seed oil extracted by cold pressing was studied. Citrus junos seed oil was found to contain approximately 74% of unsaturated fatty acids consisting mainly of oleic acid and linoleic acid, and limonene, which is mainly contained in Citrus junos peel, contained a very low content of about 0.0187%. As a result of evaluating the DPPH radical scavenging activity of Citrus junos seed oil, 26% of DPPH radical scavenging ability was confirmed at 5% concentration of Citrus junos seed oil. To confirm the anti-inflammatory effect, as a result of testing RAW 264.7 cytotoxicity test and NO production for Citrus junos seed oil, NO production was suppressed by 53% at a concentration of 0.05% that does not show cytotoxicity. In addition, in the RBL-2H3 cytotoxicity and β-hexosaminidase release inhibitory efficacy test for anti-allergic efficacy confirmation, it was confirmed that β-hexosaminidas release was suppressed by 26% at a concentration of 0.05% that did not show cytotoxicity. Lastly, in the human skin application test result of O/W emulsion containing 5% of Citrus junos seed oil, it showed higher skin moisturizing effect than the control emulsion containing the same amount of caprylic/capric triglyceride. Therefore, it is thought that Citrus junos seed oil might be used as a excellent skin care material.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.41 no.3
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• pp.340-347
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• 1996

Soybean [Glycjne max Merr. L.] variety 'Danyeobkong' was inoculated with soybean mosaic virus SMV-G5H strain in field and green house at Crop Experiment Station in 1995. The effects of this virus strain on plant characteristics and seed chemical composition of the soybean variety Danyeobkong were evaluated. Yield, the number of pod and 100 seed weight were significantly reduced by SMV-G5H strain infection. Inoculation of SMV-G5H strain of soybean mosaic virus caused the increment of seed protein content and the decrement of seed oil content in the soybean variety Danyeobkong. Changing pattern of fatty acid composition by SMV-G5H strain infection was varied according to the experimental place. In field trial, the percentage of linoleic and linolenic acids decreased and stearic and oleic acids increased in the seed oil from virus infected plants. In green house trial, however, linolenic and oleic acids were increased, whereas palmitic and linoleic acids were reduced.

• Korean Journal of Organic Agriculture
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• v.20 no.4
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• pp.589-605
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• 2012

This study was conducted to identify allelopathic effect of Ganghwa domestic Artemisia spp., named Sajabalssuk and Ssajuarissuk, for various receptor plants including clover (Trifolium repens L.), alfalfa (Medicago sativa L.), lawn grass (Zoysia japonica Steud.), dandelion (Taraxacum platycarpum Dahlst.), and dahurianpatrinia (Patrinia scabiosaefolia Fisch. ex Trevir). Receptor plants were treated with the aqueous and essential oil extract of Artemisia plants. In consequence, their allelopathic effects were evaluated by measuring seed germination rates, seedling growth, and dry weights of the receptor plants. The seed germination and seedling growth of the receptor plants were inhibited by all treatments of both aqueous and essential oil extracts of the Artemisia plants, and, in addition, the inhibitory effects were increased according to the higher concentration. Among the donor plants, A. $sp.^*III$ showed most effective allelopathic effect. Comparing the alleopathic effect among the receptor plants, seed germination was most inhibited in lawn grass while inhibitory effect of seedling growth was comparatively higher in dandelion. Although inhibitory effects were comparatively lower, the allelopathic effects of Artemisia plants were identified in clover and alfalfa since the seedling growth of these plants were inhibited more than 70%. Thus, in result, Ganghwa domestic Artemisia spp. could be possibly used for weed control since natural products of the plants showed inhibitory effects on seed germination and seedling growth of various receptor plants.

• Journal of the Korean Applied Science and Technology
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• v.34 no.3
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• pp.666-672
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• 2017

Hemp [Cannabis sativa L.] has been cultivated as a fiber crop for long history, but it was a good oil crop because its seed contain plenty of lipid which is high ratio of unsaturated fatty acid. Hemp seed oil was extracted with a extruding method in many countries including Europe. The color of oil extracted with extruding method is dark green which could be difficult to attract consumer's interest in Korea because of insufficient information about hemp seed oil. This study was conducted to know correct information about hemp seed oils which were extracted with pressuring and extruding methods. In extruding method, seeds were crushed during the extracting process and discharged oil cake in shape of thin ribbon, but maintained seed shape although the seed were slightly flatted in pressuring method. Oil yield were higher in the extruding method in comparison with pressuring method. The oil have lower degree of lightness but higher degree of greenness and yellowness in the extruding method in comparison with pressuring method because of higher content of chlorophyll A, B and carotenoid. In fatty acid composition, the ratio of palmitic acid, stearic acid, oleic acid and ${\gamma}$-linolenic acid were higher but linoleic acid and ${\alpha}$-linolenic acid were lower in the extruding method in comparison with pressuring method. The content of total tocopherol and ${\gamma}$-tocopherol were lower in the extruding method in comparison with pressuring method.

• Journal of the Korean Society of Food Science and Nutrition
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• v.16 no.4
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• pp.311-316
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• 1987

From the results of triglyceride composition and the fatty acid at ${\beta}-position$ of glycerol, triglyceride molecular species of sunflower seed oil were found to be 26 kinds. The major triglyceride molecular species in sunflower seed oil were identified to PLL; 10.4%, OLL; 22.3%, and characterized that LLL species existed more than 31% of the total triglyceride molecular specie.

• The Korean Journal of Ecology
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• v.23 no.6
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• pp.431-434
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• 2000

To examine the allelopathic potentials of Chrysanthemum boreale, aqueous extracts and essential oil of the plant were used in these experiments. Seed germination of the receptor species was inhibited by the aqueous extracts and the inhibitory effect was increased in proportion to the concentration of extracts. In contrast, seedling elongation showed varied results. Achyranthes japonica, Bidens bipinnata, Raphanus sativus var. hortensis for. acanthiformis, Plantago asiatica, Pimpinella brachycarpa and Lactuca sativa were inhibited by increasing concentration of the aqueous extract, while Brassica campestris subsp. napus var. pekinensis and Echinochloa crus-galli were stimulated by the extract. Dry weight was also inhibited proportionally by increasing concentration of the aqueous extract, while some species were stimulated by a lower concentration of the extract. The volatile substances of C. boreale did not affect the seed germination of receptor plants, but seedling elongation and dry weight of some species were inhibited dose-dependently. Root hair development of selected plants was inhibited along with the concentration of essential oil. The above mentioned results, therefore, confirmed that the natural substances from C. boreale had allelopathic potentials to other plants.

• Journal of the Korean Dietetic Association
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• v.23 no.1
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• pp.14-26
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• 2017

The purpose of this study was to determine the optimal recipe of rice cookies with two different amounts of Stevia rebaudiana leaf and grape seed oil, using a central composite design (CCD). In addition, mixing conditions of rice cookies were optimized by sensory evaluation and mechanical and physicochemical analysis using response surface methodology (RSM). RSM was used to obtain 10 experimental points (including two replicates of Stevia rebaudiana leaf and Grape seed oil), and the formulation of Stevia rebaudiana leaf added rice cookies was optimized using rheology. The results of mechanical and physicochemical analysis showed significant values for lightness, redness, yellowness, hardness, spread factor, loss rate, leavening rate, sweetness, moisture, pH, and density (P<0.001), results of the sensory evaluation showed significant values for color, flavor, taste, texture, appearance, and overall quality (P<0.05). As a results, optimal sensory ratio was found to be 1.98 g of Stevia rebaudiana leaf and 37.94 g of Grape seed oil.

• Journal of the Korean Chemical Society
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• v.55 no.4
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• pp.680-684
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• 2011

Seed oil of Balanites aegyptica was transesterified to produce biodiesel and its quality and biodegradability assessed. The specific gravity (SG), density and flash point of the methyl esters were found to be 0.897, 0.89 g/$cm^3$ and $163^{\circ}C$ respectively. Biodegradability of the biodiesel assessed by the standard $CO_2$ evolution method using two different inoculums revealed that the Balanites aegyptica biodiesel was readily biodegradable in both inoculums (82.58% and 86.98%), compared with the $D_2$ diesel which was partially biodegradable (27.02% and 27.33%). These suggest that Balanites aegyptiaca seed oil is a potential source of environmentally friendly biodiesel.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.33 no.s01
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• pp.98-114
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• 1988

This study was conducted to investigate the status and prospects of seed quality researches in rapeseed. Rapeseed Quality was mainly related to oil and protein content, fatty acid composition and glucosinolate content. Hence, breeding for improvement of rapeseed Quality has been emphasized as follows: 1) inheritance mode, 2) investigation of germplasm, 3) establishment of analysis technique, 4) establishment of selection method, 5) idealization of cultural technique. The oil quality is determined by its fatty acids. Fatty acids have been determined by gas chromatography. To improve oil quality was emphasized for zero erucic acid, the highest possible linoleic acid and the lowest possible linolenic acid content. Rapeseed meal is not considered as top quality feed ingredient although it has higher protein content and well-balanced amino acid composition. This is mainly because of the presence of considerable amounts of glucosinolates. Thus the reduction of glucosinolate content in rapeseed meal is of great importance. In breeding for meal quality, low glucosinolate lines (plants) were selected and analyzed by gas chromatography and UV-spectrophotometer. Current problems and future researches of rapeseed quality in Korea are 1) improvement of researcher's number and facilities, 2) depression of animal feeding trials, 3) unsatisfied relationship between research and manufacturing and products field, 4) improvement of fertility for yellow and thin seed coat lines crossed between mustard and rapeseed, 5) establishment of new rapid analysing system for rapeseed quality.