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Breeding of mulberry variety "Shimgang" showing resistance to popcorn disease 抗爆米花病桑树新品种“新冈”的选育
Pub Date : 2016-12-31 DOI: 10.7852/IJIE.2016.33.2.41
Gyoo-Byung Sung, S. Seo, Yong Soon Kim, Wan-Taek Ju, Hyun Bok Kim, Kee-Young Kim
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引用次数: 0
Comparison of gloverin gene expression patterns between domesticated and wild silkworms 家蚕与野生家蚕gloverin基因表达谱的比较
Pub Date : 2016-12-31 DOI: 10.7852/IJIE.2016.33.2.113
Seong-Ryul Kim, Kwangho Choi, Sung-Wan Kim, Seung‐Won Park
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引用次数: 0
Optimization of culture conditions of Bacillus subtilis with α-glucosidase inhibitory activity α-葡萄糖苷酶抑制枯草芽孢杆菌培养条件的优化
Pub Date : 2016-09-30 DOI: 10.7852/IJIE.2016.33.1.24
Yong‐Soon Kim, Wan-Taek Ju, Hyun-bok Kim, Gyoo-Byung Sung
1-Deoxynojirimycin (DNJ) have been extensively investigated for their α -glucosidase inhibitor on postprandial hyperglycemia, and applied in nutraceuticals and medicine for preventing or delaying progression of type 2 diabetes. However, the amount of DNJ in mulberry leaves is low (about 0.1%), therefore, more effective extraction method is needed. This study was performed to develop microbial DNJ for biological methods of DNJ as an alternative to the chemical methods. In this study, we obtained evidence for Bacillus subtilis that produce DNJ in large quantities by high performance liquid chromatography. Inhibition of α -glucosidase activity was determined to DNJ production or non-production. Investigation of the effect of mulberry leaves powder concentration (1~5%), using the DNJ high-production bacteria, provided evidence for microbial mass production of DNJ. When the 4% mulberry leaf powder for 9 days was used, the α -glucosidase inhibitory activity was over the 85%. Also, the results presented in this study confirm DNJ yield’s increasement in microbes using the various of nutrients and provide insight of ways to improve DNJ yields in microorganisms.
1-脱氧诺吉霉素(DNJ)作为α -葡萄糖苷酶抑制剂对餐后高血糖的抑制作用已被广泛研究,并应用于预防或延缓2型糖尿病进展的营养保健和药物中。但桑叶中DNJ含量较低(约0.1%),需要更有效的提取方法。本研究旨在开发微生物DNJ,作为生物方法DNJ的替代方法。在本研究中,我们通过高效液相色谱法获得了枯草芽孢杆菌大量产生DNJ的证据。测定α -葡萄糖苷酶活性对DNJ产生或不产生的抑制作用。研究桑叶粉浓度(1~5%)对DNJ高产菌的影响,为微生物量产DNJ提供依据。4%桑叶粉处理9 d后,其α -葡萄糖苷酶抑制活性达到85%以上。此外,本研究的结果证实了微生物在使用各种营养物质时DNJ产量的增加,并为提高微生物DNJ产量的方法提供了见解。
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引用次数: 2
Effect of Saccharomyces cerevisiae consumption on the pathogenicity of Beauveria bassiana in Protaetia brevitarsis 酿酒酵母食用量对白僵菌致病性的影响
Pub Date : 2016-09-30 DOI: 10.7852/IJIE.2016.33.1.1
Kyu‐Won Kwak, Myung‐Sae Han, S. Nam, K. Park, Eun-Sun Kim, Seokhyung Lee, Myung-Ha Song, W. Kim, Ji-Young Choi
Beauveria bassiana is a common fungal pathogen of Protaetia brevitarsis larvae, and although it is less common than Metarhizium anisopliae , the pathogen still poses a great risk to humans and animals that consume infected insects, owing to B. bassiana's production of toxins like beauvericin and mycotoxin. Interestingly, the beneficial microorganism Saccharomyces cerevisiae possesses antifungal properties. In the present study, we found that S. cerevisiae inhibited the growth of B. bassiana by 97% and that S. cerevisiae failed to harm P. brevitarsis when administered via intracoelomic injection (1×107 cfu/mL). In addition, we also found that S. cerevisiae consumption increased the survival time of percutaneously infected P. brevitarsis larvae by 5 d and reduced the mortality of infected larvae by 12%. Therefore, S. cerevisiae is expected to be useful in the prevention and control of B. bassiana in the production of P. brevitarsis larvae.
球孢白僵菌(Beauveria bassiana)是一种常见的白僵菌(Protaetia brevitarsis)幼虫的真菌病原体,虽然它不像绿僵菌(Metarhizium anisopliae)那么常见,但由于球孢白僵菌产生的毒素如beauvericin和霉菌毒素,它仍然对食用受感染昆虫的人类和动物构成很大的风险。有趣的是,有益微生物酿酒酵母具有抗真菌特性。在本研究中,我们发现酿酒葡萄球菌对球孢白僵菌的生长抑制率为97%,而通过腹腔内注射(1×107 cfu/mL)酿酒葡萄球菌对白僵菌没有伤害。此外,我们还发现,酿酒葡萄球菌的消耗使经皮感染的白氏疟原虫幼虫的存活时间延长了5 d,使感染幼虫的死亡率降低了12%。因此,酿酒葡萄球菌有望在白螺旋体幼虫生产过程中预防和控制球孢白螺旋体。
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引用次数: 0
Mulberry popcorn disease occurrence in Korea region and development of integrative control method 韩国地区桑椹爆花病的发生及综合防治方法的发展
Pub Date : 2016-09-30 DOI: 10.7852/IJIE.2016.33.1.36
Wan-Taek Ju, Hyun-bok Kim, Gyoo-Byung Sung, Kwang-Young Park, Yong‐Soon Kim
Mulberry fruits also have tremendous potential for providing various valuable industrial products of very high economic value for human beings. Nevertheless, through global warming, the popcorn disease caused by sclerotia forming fungi reduces the productivity of mulberry fruits in worldwide. So, in this study, we investigated damage ratio of mulberry popcorn disease in mulberry fruit production farm (Buan, Jeongueb, Sangju, Gochang in Korea). In Jeonbuk Buan, popcorn disease rate was the highest about 30%, on the other hand, in case of Gyungbuk Sangju and Jeonbuk Gochang, not damage. Also, we investigated about popcorn disease prevention by various of chemical treatment methods.
桑树果实还具有巨大的潜力,可以为人类提供各种具有很高经济价值的工业产品。然而,由于全球变暖,由菌核形成真菌引起的爆米花病在世界范围内降低了桑树果实的产量。因此,本研究对韩国扶安、全桂、尚州、高昌等桑树生产农场桑树爆米花病的危害率进行了调查。全北扶安地区的爆米花病害率最高,达30%,而庆北尚州和全北高敞地区则没有发生病害。并对不同化学处理方法对爆米花病的防治效果进行了探讨。
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引用次数: 3
Artificial rearing of the olive fruit fly Bactrocera oleae (Rossi) (Diptera: Tephritidae) for use in the Sterile Insect Technique: improvements of the egg collection system 用于昆虫不育技术的油橄榄小实蝇(双翅目:蝗科)的人工饲养:采卵系统的改进
Pub Date : 2016-09-30 DOI: 10.7852/IJIE.2016.33.1.15
Sohel Ahmad, I. Haq, P. Rempoulakis, D. Orozco, A. Jessup, C. Cáceres, H. Paulus, M. Vreysen
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引用次数: 9
Nutrition composition differences among steamed and freeze-dried mature silkworm larval powders made from 3 Bombyx mori varieties weaving different colored cocoons 3种不同颜色蚕茧的蒸熟和冻干成熟蚕蛹粉的营养成分差异
Pub Date : 2016-09-30 DOI: 10.7852/IJIE.2016.33.1.6
S. Ji, Nam-suk Kim, Haeyong Kweon, Bo-Hey Choi, Kee-Young Kim, Y. Koh
The mulberry silkworm, Bombyx mori has been one of the most important domestic animals which have provided with silk fibers for weaving fabrics and a food for a protein and lipid source. In addition, various health improvement effects of diverse silkworm larval powders were reported. Recently we found that steamed and freeze-dried mature silkworm larval powder (SMSP) generated using white-jade (also known as Backokjam) silkworm variety extended healthspan and increased resistance to Parkinson`s disease in animal models. Because the colors of cocoons in silkworm varieties were caused by altered signal transduction pathways transporting phytochemicals from intestinal lumens to silk glands, we performed the proximate, amino acid, mineral, carbohydrates, fatty acid, and cholesterol composition analyses of SMSPs of 3 silkworm varieties which were weaving light yellow, golden, and red cocoons. Although most of nutrient compositions among 3 SMSPs were similar, there were significant differences in certain amino acids, minerals, and fatty acid compositions. Red silk silkworm (RS)-SMSP had higher contents of crude proteins and total amino acids than other SMSPs. In addition, the ratio of n-3/n-6 unsaturated fatty acids were higher than the other SMSPs. In contrast Golden silk silkworm (GS)-SMSP had higher ratio of potassium/sodium than the other SMSPs. These nutrient analysis results suggested that 3 SMSPs might have common and unique health improvement effects. Thus, further studies in the functionalities of the 3 SMSPs will reveal unknown their health improvements effects.
桑蚕(Bombyx mori)是最重要的家畜之一,它为织造织物提供丝纤维,并为蛋白质和脂质来源提供食物。此外,还报道了不同家蚕幼虫粉对健康的不同改善效果。最近,我们在动物模型中发现,用白玉蚕(也称为Backokjam)品种制成的蒸熟和冻干成熟蚕幼虫粉(SMSP)延长了健康寿命,增强了对帕金森病的抵抗力。由于蚕茧的颜色是由将植物化学物质从肠腔转运到蚕丝腺的信号转导途径改变引起的,因此我们对3个蚕茧品种的SMSPs进行了近似、氨基酸、矿物质、碳水化合物、脂肪酸和胆固醇组成分析。虽然3种SMSPs的大部分营养成分相似,但在某些氨基酸、矿物质和脂肪酸组成上存在显著差异。红丝蚕(RS)-SMSP的粗蛋白质和总氨基酸含量高于其他smsp。此外,n-3/n-6不饱和脂肪酸的比例高于其他SMSPs。相比之下,金蚕丝(GS)-SMSP的钾钠比高于其他smsp。这些营养分析结果表明,3种SMSPs可能具有共同和独特的健康改善作用。因此,对3种SMSPs功能的进一步研究将揭示其未知的健康改善效果。
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引用次数: 13
Comparison of optimal temperature and time conditions for highest a-glucosidase inhibitory activity from various of Korea mulberry teas 不同韩国桑茶a-葡萄糖苷酶抑制活性最佳温度和时间条件的比较
Pub Date : 2016-09-30 DOI: 10.7852/IJIE.2016.33.1.31
Wan-Taek Ju, Hyun-bok Kim, Gyoo-Byung Sung, Yong‐Soon Kim
The influence of commonly used steeping times and temperatures about mulberry tea on a-glucosidase inhibitory activity were studied. The effects of product and preparation variables on the in-cup chemical composition of mulberry tea extracts is of interest because the appearance and taste characteristics and the possible health effects of a tea liquor arise from the chemical components extracted from the leaf during mulberry tea preparation. A comprehensive study was therefore undertaken to determine the contributions of product and provide a basic data for development of high quality mulberry tea products against diabetes. Specific eight mulberry tea were collected from each region of Korea (A-I) and when it was extracted on 85℃ for 2min, a-glucosidase activity was best for 98-102%. According to various temperature and time extraction methods, this study was carried out to optimize teamaking conditions for maximal DNJ extraction from Korean mulberry tea and and it would be of particular interest for people who drink mulberry tea to control blood glucose levels.
研究了桑树茶常用浸泡时间和浸泡温度对a-葡萄糖苷酶抑制活性的影响。产品和制备变量对桑树茶提取物杯内化学成分的影响是令人感兴趣的,因为在桑树茶制备过程中,从茶叶中提取的化学成分决定了茶液的外观和味道特征以及可能对健康产生的影响。因此,进行了全面的研究,以确定产品的贡献,为开发高品质的抗糖尿病桑树茶产品提供基础数据。从韩国各地区(A-I)采集了8份桑茶,在85℃条件下提取2min, a-葡萄糖苷酶活性最高,为98-102%。通过不同温度和时间的提取方法,优化了从韩国桑树茶中提取DNJ的最佳工艺条件,对饮用桑树茶的人控制血糖有一定的参考价值。
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引用次数: 1
Enhanced expression of the structural protein of porcine reproductive and respiratory syndrome virus (PRRSV) by SUMO fusion SUMO融合增强猪繁殖与呼吸综合征病毒(PRRSV)结构蛋白的表达
Pub Date : 2016-06-30 DOI: 10.7852/IJIE.2016.32.2.90
H. Koo, S. Bae, S. Woo
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引用次数: 0
Effects of agricultural byproducts, DDG and MSG, on the larval development of mealworms 农副产物DDG和味精对粉虫幼虫发育的影响
Pub Date : 2016-06-30 DOI: 10.7852/IJIE.2016.32.2.69
Sunyoung Kim, H. Kim, K. Lee, H. Yoon, N. Kim
Distillers dried grain (DDG) and makgeolli spent grain (MSG) are agricultural byproducts to produce alcoholic beverage. However, they are known to contain enough nutrients. Mealworm is a promising insect resource for an animal feed ingredient as well as alternative human food. With low cost, DDG and MSG were investigated as a feed ingredient for rearing high quality mealworms. DDG and MSG were mixed with wheat bran and compared to control feed (only wheat bran) for its effects on larval survivorship, larval weight, duration for developmental period, pupation rate, and pupal weight. When DDG added, larval survivorship was reduced to 50~70% compared to the control group. Larvae fed on DDG were heavier from third to sixth week. Especially, larvae with 50% DDG were 28% heavier than the control group at the third week. For the larval period, the 50% DDG group was 11% less than that for the control. The pupal weight for the 30% DDG group was 7% heavier than that for the control group. Pupation rates for all the DDG groups were higher than 90%. When compared to the control, larval survivorship for the 70% MSG group was low, but the 50% and 70% MSG groups were high during the seventh and eighth weeks because of delayed development. After the eighth week, larvae with 70% MSG showed the highest larval weight increase as 9~18% compared to the control group. Except 70% MSG group, all of MSG groups showed more than 90% pupation rates. We confirmed that adding 30~50% of DDG or MSG to conventional wheat bran have a strong potential to replace the conventional wheat bran insect feed for quality insect production.
酒糟(DDG)和米酒(MSG)是生产酒精饮料的农业副产品。然而,众所周知,它们含有足够的营养。粉虫是一种很有前途的昆虫资源,既可以作为动物饲料原料,也可以作为人类的替代食品。以低成本为条件,研究了DDG和味精作为优质粉虫的饲料原料。将DDG和味精与麦麸混合,对比对照饲料(仅麦麸)对幼虫成活率、幼虫体重、发育时间、化蛹率和蛹重的影响。添加DDG后,幼虫存活率较对照组降低50~70%。第3 ~ 6周饲喂DDG的幼虫较重。其中,50% DDG组的幼虫在第3周较对照组重28%。在幼虫期,50% DDG组比对照减少11%。30% DDG组蛹重比对照组重7%。各DDG组的化蛹率均大于90%。与对照组相比,70%味精组的幼虫存活率较低,但50%和70%味精组的幼虫存活率在第7周和第8周较高,因为发育延迟。第8周后,添加70%味精的幼虫体重比对照组增加了9~18%。除70%味精组外,其余味精组的化蛹率均在90%以上。结果表明,在常规麦麸中添加30~50%的DDG或味精具有替代常规麦麸昆虫饲料生产优质昆虫的潜力。
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引用次数: 8
期刊
International journal of industrial entomology
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