• 한국식생활문화학회지
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• 제16권5호
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• pp.399-406
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• 2001

This study was carried out to investigate the effects of addition ratio(0, 5, 10 and 20%) of various minor ingredients(prosomillet, glutinous barley, oat, wheat, yellow and black soybean, safflower seed, chocolate etc.) on mechanical and sensory characteristics of Sulgiduk. In mechanical evaluation, hardness, cohesiveness and gumminess were increased with increasing the content of prosomillet, glutinous barley, oat and wheat to be added, and did not show any relationship the content of them to be added on yellow and black soybean, safflower seed and chocolate. In sensory evaluation, quality characteristics of Sulgiduk added with prosomillet, oat, yellow and black soybean and chocolate with $5{\sim}10%$, respectively was better than those of Sulgiduk without the minor ingredients. Change of hardness on Sulgiduk added with oat, yellow soybean, black soybean and chocolate was lower than those of Sulgiduk without them during storage of room temperature.

• 한국초지조사료학회지
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• 제18권4호
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• pp.355-360
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• 1998

본 연구는 가을철에 숙기가 다른 연맥과 유채품종의 혼파가 사초의 건물수량 및 사료가치에 미치는 영향을 구명하기 위해 1998년 우석대학교 초지시험포에서 수행되었으며 그 결과를 요약하면 다음과 같다. 1. 연맥은 Foothill 조합군이 Swan 군보다 초장이 약간 길었지만, 유의적인 차이는 없었다. 또한, 유채의 초장은 유의적인 차이는 없었으나 Foothill 조합은 Ember나 Akela가, Swan 조합은 Ramon이 길었다. 2. 연맥에서 Swan의 건물수량이 Foothill 보다 약간 높았으나 유의적인 차이는 없었다. 유채는 Foothill과 Swan과 조합한 처리구에서 모두 Akela의 건물수량이 가장 높았으나 유의적인 차이는 없었다. 3. 조단백질 함량과 조단백질 생산량은 연맥 Foothill 조합이 Swan 조합보다 높았으며, 연맥 Foothill과 Swan 조합과는 모두 유채 Akela 조합이 Ramon이나 Ember 조합보다 높았다. 4 연맥 Swan의 ADF와 NDF 함량은 Foothill 보다 약간 높았으며, 유채는 Foothill에서는 ADF는 Ramon과 NDF는 Akela와 조합이, Swan은 Ember와의 조합이 높아 사료가치는 감소하였다. 5. IVDMD 함량은 연맥 Foothill 조합이 84.5%로 Swan 조합보다 약간 높았으며, 연맥 Foothill과는 유채 Ember가, 연맥 Swan과는 유채 Akela 조합이 높았다. 또한 가소화 건물생산량은 연맥 Foothill 조합이 ha당 3,578kg로 Swan 조합보다 약간 높았으며, 또한 Foothill과 Swan 조합에 서 각각 유채 Akela 조합이 약간 높았다. 이상의 결과를 종합하여 볼 때 통계적인 유의차는 없었으나 가을철 단경기에 연맥은 Foothill과 유채는 Akela를 같이 혼파하여 재배 이용하면 다른 품종에 비하여 사료가치도 약간 높으며 건물수량 측면에서 바람직하다고 생각된다.

• 한국초지조사료학회지
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• 제20권4호
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• pp.243-250
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• 2000

Selection of oat variety according to cultivation period is an important to increase productivity of forage crop. To investigate the growth characters and dry matter productivity of oats according to cultivation period, early-maturing oat(EM0) and medium-maturing oat(MM0) variety were sown in spring and autumn at central district of Korea. When oats were cultivated in spring, MMO variety was longer 8 cm in leaf length and wider 5 mm in leaf width than 25 cm and 12 mm of EM0 variety, rexpectively. but in autumn, those were not different between maturities of oat varieties. Plant length of MMO variety was longer 7 cm than that of EM0 Variety in spring cultivation, but in autumn, plant length of EM0 variety was longer 14 cm than that of MMO variety. Heading dates were 20th to 22th May in EM0 variety, and 30th May to 10th June in MMO variety in spring cultivation, and ear of EM0 variety emerged 30th Oct. to loth Nov. but that of MMO variety did not emerge at harvesting day in autumn cultivation. In Spring cultivation, dry matter(DM) yield of EM0 variety was 7,349 kg/ha that was less 56% than 11,466 kg/ha of MMO variety, but In Autumn, was more 15% than 6,575 kg/ha of MMO variety. In conclusion, selection of oat variety in spring and autumn cultivation can be different with cropping system of forage crop, and this trial is suggesting that oat variety could be sown MMO variety in spring and EM0 variety in autumn at central district of Korea. (Key words : Oat variety, Productivity, Cultivation season)

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.257-257
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• 2017

Being producing and evaluating oat-chocolate were a major goal in this study. There were various steps to make oat-chocolate. First, oat was roasted with an optimum roasting-temperature. Second, discovered the best natural antioxidant to extend storage period and improve quality of goods. Third, developed processing goods and made an evaluation of quality properties. We selected optimum roasting condition of $160^{\circ}C$ for 15 min based on the acid value and the sensory characteristics such as color, taste, smell and overall preference of oat flour. As for natural antioxidants, we made use of 3 kinds of antioxidants (cactus, lavender and green tea) and two concentrations (0.5 and 1%). In investigating antioxidants, an acid value was significantly decreased as the antioxidants were added (p<0.05). Nothing was as low in acid value as a chocolate with 1 % lavender flour in 7 days. Findings showed the sensory characteristics of products containing antioxidants such as green tea and cactus, were higher than those of Cont. in 7 days. A product including 0.5% green tea marked the best sensory score among antioxidants. Compared cost among 3 antioxidants, green tea was the cheapest. In the end, 0.5% green tea was selected as an optimal antioxidant to make high-quality oat chocolate. We made an end product by mixing green tea (0.5%) and oat. With respect to Hunter's color L (whiteness), a (redness) and b (yellowness), as green tea added, L and a level showed an increasing tendency. However, an opposition result was expressed in b level. When compared pH value and total acidity, it was statistically identical between Cont. and product with 0.5% green tea (G-0.5). There was different acid value among specimens. The acid value of G-0.5 was lower than that of Cont. up to 7 days, resulting in lower acid value than a ready-made product (D-Co.). When we assessed the sensory characteristics, G-0.5 was higher than other specimens such as Cont. and ready-made products (D-Co. and H-Co.) up to 6 days after manufacture. Put previous findings together, the addition of 0.5% green tea increased an antioxidative effect as well as the sensory acceptability of oat-chocolate.

• BMB Reports
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• 제29권6호
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• pp.535-539
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• 1996

The activation of phospholipase D (PLD) catalyzes hydrolysis of phosphatidylcholine (PC) to phosphatidic acid (PA) and choline in plants as well as animals. To determine the presence of PLD in oat cells, we prepared inside-out plasma membrane and cytosolic fractions from oat tissues. PLD activities in both cytosol and plasma membrane were detected by ion chromatography method. The activity of PLD in plasma membrane was dependent upon $Ca^{2+}$ concentration and was heat stable. To investigate whether G-protein couples to PLD, the effects of $GTP{\gamma}S$ and $GDP{\beta}S$ on the PLD activity were measured. PLD activity was dramatically increased 300~400% in the presence of 50 ${\mu}M$ $GTP{\gamma}S$ but not in the presence of 50 ${\mu}M$ $GDP{\beta}S$. These results indicate that G-protein may be involved in regulation of PLD activity. To identify whether PLD is regulated by red light receptor, phytochrome, we irradiated red, far-red, or red/far-red/red light on oat protoplasts. PLD activity has increased 5-fold and 3-fold by treatment with red light and red/far-red/red light, respectively. In contrast, irradiation with far-red light had little or no effect on PLD activity. These results suggest that phytochrome regulates PLD activity through activation of G-protein in oat cells.

• Clinical and Experimental Reproductive Medicine
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• 제48권2호
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• pp.150-155
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• 2021

Objective: Oxidative stress (OS) plays a key role in the etiology of unexplained male infertility. Coenzyme Q10 (CoQ10) is a potent antioxidant that may improve semen quality and OS in infertile men with idiopathic oligoasthenoteratospermia (OAT), but the underlying mechanism is unknown. Therefore, the present study was undertaken to investigate the effect of CoQ10 on OS markers and sperm DNA damage in infertile patients with idiopathic OAT. Methods: This prospective controlled study included 50 patients with idiopathic OAT and 50 fertile men who served as controls. All patients underwent a comprehensive medical assessment. Patients and controls received 200 mg of oral CoQ10 once daily for 3 months. Semen and blood were collected and analyzed for sperm parameters, seminal CoQ10 levels, reactive oxygen species (ROS) levels, total antioxidant capacity, catalase, sperm DNA fragmentation (SDF), and serum hormonal profile. Results: The administration of CoQ10 to patients with idiopathic OAT significantly improved sperm quality and seminal antioxidant status and significantly reduced total ROS and SDF levels compared to pretreatment values. Conclusion: CoQ10, at a dose of 200 mg/day for 3 months, may be a potential therapy for infertile patients with idiopathic OAT, as it improved sperm parameters and reduced OS and SDF in these patients.

• 대한의생명과학회지
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• 제22권4호
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• pp.207-210
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• 2016

The efficacy of extracts of oat (Avena sativa L.) bran in loperamide-induced constipation in SD rats was evaluated. The rats were divided into six groups of five rats each. The animals in Group 1 (control) and Group 2 (constipated control) were administered with distilled water orally. Groups 3, 4 and 5 comprised of constipated rats administered 100, 200 and 300 mg/kg body weight per day of extract of oat (Avena sativa L.) bran respectively while Group 6 were constipated rats administered bisacodyl (0.25 mg/kg body weight). Constipation was induced by oral administration of loperamide. The feeding characteristics, body weight, fecal properties were monitored. The results show that oats (Avena sativa L.) bran possesses laxative effects in loperamide-induced constipated rats.

• 한국작물학회지
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• 제56권3호
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• pp.284-291
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• 2011

Varietal and annual variations in the contents of ${\beta}$-glucan fractions per weight grain samples were examined in sixteen covered and eighteen naked barley and five oat cultivars developed in Korea. Also, the effect of pearling on ${\beta}$-glucan content was investigated. Average contents of total, soluble and insoluble ${\beta}$-glucan fractions were 5.25, 3.72, and 1.53%, respectively, in covered barley, and 5.86, 3.51, and 2.35%, respectively, in naked barley. Soluble ${\beta}$-glucan content was higher in covered barley, though total ${\beta}$-glucan content higher in naked barley. The total and insoluble ${\beta}$-glucan contents were higher in pearled grains. Total ${\beta}$-glucan content was higher in waxy barley than in non-waxy barley. Duwonchapssalbori, a two-rowed and waxy naked barley cultivar, was highest in total, soluble and insoluble ${\beta}$-glucan contents. Highly significant positive correlations were observed between total ${\beta}$-glucan and soluble ${\beta}$-glucan contents both in covered and naked barley. There were significant annual variations in total ${\beta}$-glucan content in barley. Average contents of total, soluble and insoluble ${\beta}$-glucans of oat cultivars were 4.33, 3.44, and 0.89%, respectively. Contents of all fractions of ${\beta}$-glucans were higher in barley than in oat. These results would be useful for the breeding of high ${\beta}$-glucan variety and also for the use barley and oat as valueadded food ingredients.

• 한국균학회지
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• 제46권4호
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• pp.459-466
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• 2018

2017년 1월 정읍의 한 농가 저장창고에서 검게 변한 귀리종자가 발견되었다. 조사된 100개의 종자 중 45개 종자에서 Pyrenophora속 균이 검출되었다. 종자에서 얻어진 모든 균주들은 internal transcribed spacer (ITS) 부위와 glyceraldehyde 3-phosphate dehydrogenase (GPDH) 유전자 염기서열을 기초로 Pyrenophora avenae로 동정되었고, 형태적, 배양적 특성에 의해 확인되었다. ITS와 GPDH 염기서열 기반의 계통수를 통해 P. avenae 균주는 유전적으로 뚜렷한 4개의 그룹으로 구분할 수 있었다. 병원성 검정 결과, P. avenae는 귀리의 종자흑변과 잎마름병을 일으키는 병원균으로 확인되었다. 이것은 한국에서 P. avenae가 귀리잎마름병을 일으킨다는 최초 보고이다.

• 한국초지조사료학회지
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• 제20권3호
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• pp.185-192
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• 2000

This experiment was canied out to determine the effect of management practices on the quality of round baled oat silage at experimental field of Grassland and Forage Crops division, National Livestock Research Institute, RDA, Suwon from 1997 to 1998. The experiments are consist of randomized block design with 3 replications. The treatments are 3 wilting dates(0, 2 and 4 days), 3 wrap colors(white, black and green and 3 inoculant(untreated, Inoculant A and Inocuant B). The crude protein(CP) content was increased by prolonged wilting periods, but the effect of wrap color and inoculant were not founded. Acid detergent fiber(ADF) and neutral detergent fiber(NDF) content of all silages were not founded significant difference, but in vitro dry matter digestibility of oat silage with inoculant was significantly higher compare with control. Wilting treatment increased the mean silage acidity compare with control and inoculant treatment significantly reduced silage acidity. Wrap color did not influence the silage acidity. Wilting or inoculant treatments increased lactic acid content but, decreased the content of acetic and butyric acid. The quality grade of all silage were grade 3, except inoculant treated silage. Wilting or inoculant decreased silage DM loss, but wrap color did not effect on siage DM loss. The result of this study indicate that wilting for 2-4 days and inoculant will improve the silage fermentation and quality of round baled oat silage. (Key words : Oat, Wilting, Inoculant, Wrap color, Round bale silage)