• 생명과학회지
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• 제25권8호
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• pp.870-879
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• 2015

109종의 뽕잎 종류 중 국상 품종 뽕잎으로부터 α-amylase와 α-glucosidase 저해작용을 가지는 페놀성화합물을 분리하여 저해활성을 검토하였다. 국상 뽕잎의 물추출물에서 α-amylase와 α-glucosidase 저해 활성이 각각 93.8%와 48.7%를 나타내었다. 국상뽕잎 추출물의 페놀화합물의 함량은 물 추출물에서 9.7±0.2 mg/g, 60% ethanol 추출물에서 14.3±0.2 mg/g으로 나타났으며, 국상뽕잎 물 추출물 200 μg/ml의 농도에서 α-amylase와 α-glucosidase 저해활성이 각각 100%와 82.6%로 나타났다. 국상뽕잎으로부터 α-amylase와 α-glucosidase 저해활성을 가지는 천연물을 분리하기 위하여 국상뽕잎 물추출물을 Sephadex LH-20과 MCI-gel을 이용하여 normal phase type인 EtOH→H₂O와 reverse phase type인 H₂O→MeOH로 유기용매의 농도를 증가시키며 gradient로 용출하여 정제하였다. α-Amylase와 α-glucosidase 저해활성을 가지는 정제물은 FAB-MS, NMR과 IR spectrum을 구조 분석한 결과 quercetin으로 동정되었다.

• International Journal of Industrial Entomology and Biomaterials
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• 제37권2호
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• pp.43-48
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• 2018

Mulberry fruit is a new income product in Korea sericulture due to the increase of fruit consumption. However, flavonoids of Korean mulberry cultivar for fruit production did not reported yet. In this study, the typical mulberry cultivar, 'Daeshim' was analyzed using ultrahigh performance liquid chromatography coupled with diode array detection and quadrupole time-of-flight mass spectrometry (UPLC-DAD-QTOF/MS) technique for flavonoids analysis. Nine flavonoids were isolated and analyzed from Daeshim using UPLC-DAD-QTOF/MS chromatogram. According to quantitative analysis, rutin (66.1 mg/100g DW) and quercetin 3-O-(6"-O-malonyl) glucoside (26.7 mg/100g DW) were abundant in mulberry fruit. Our results might be used as basic information for mulberry consumption.

• 원예과학기술지
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• 제35권1호
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• pp.148-148
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• 2017

• 한국잠사학회:학술대회논문집
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• 한국잠사학회 2002년도 Join Meetings of Korean Society of Sericultural Science and Japanse Society of Sericultural Science
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• pp.128-128
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• 2002

No Abstract, See Full Text

• 한국식생활문화학회지
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• 제32권6호
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• pp.558-565
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• 2017

This study examined the quality characteristics of cookies prepared with mulberry leaf powder (0, 1, 3, 5, and 7%) substituted for flour. The pH of the cookie dough decreased significantly in response to the addition of all levels of mulberry leaf powder. The spread factor of the cookies also increased significantly with increasing mulberry leaf powder content added to the cookies recipe. In addition, the Hunter's color L and a values decreased significantly with increasing mulberry leaf powder content, whereas the b value increased. According to hardness measurements, the substitution of 1~7% mulberry leaf powder resulted in increased hardness compared to the control. Moreover, the DPPH free radical scavenging activity of the cookies was increased significantly (p<0.05) with increasing levels of mulberry leaf powder. The sensory evaluation revealed cookies containing 3% to have the highest scores.

• Asian-Australasian Journal of Animal Sciences
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• 제17권12호
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• pp.1657-1662
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• 2004

The forage potential of mulberry (Morus alba) was evaluated under Malaysian conditions. The yield and nutrient composition of plant fractions of mulberry (whole plant, leaf and stem fractions) were determined at four harvest stages, namely, 3 (W3), 5 (W5), 7 (W7) and 9 (W9) weeks in a randomized block design. The study was conducted over a 9-month period to assess the persistence of the crop to repeated harvests. Fresh and dry matter (DM) yields of all plant fractions increased significantly (p<0.01) with increasing intervals between harvests, with highest DM yields at W9. The leaf to stem ratio declined significantly (p<0.01) from 5.2 (W3) to 0.9 (W9), indicating predominance of the stem fraction with advancing maturity. The nutritional composition of plant fractions was also significantly influenced (p<0.01) by advancing plant maturity at harvest. Crude protein (CP), ash and the metabolisable energy content of plant fractions declined significantly (p<0.01) from W3 to W9, while there was a corresponding significant increase (p<0.01) in the acid detergent fibre, neutral detergent fibre and acid detergent lignin. From this study it was concluded that the optimum stage to harvest the whole plant is 5 weeks, which is a compromise between yield, nutrient composition (CP and fibre components), and the annual number of cuts, with good crop persistence to repeated harvests. Fresh mulberry whole plant can provide a valuable supplemental source of nutrients to poor quality basal diets.

• 생명과학회지
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• 제22권7호
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• pp.920-927
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• 2012

생리활성을 갖는 새로운 기능성 물질을 개발할 목적으로 9종의 오디(Morus alba L.)를 이용하여 물과 60% 에탄올 추출물을 제조하고 이들의 angiotensin converting enzyme 활성억제효과, xanthine oxidase 활성억제효과, ${\alpha}$-amylase 활성억제효과 및 ${\alpha}$-glucosidase 활성억제효과를 탐색하여 본 결과, 페놀함량이 청일뽕과 강원3호 품종의 오디에서 물추출물에서 청일뽕과 강원3호 두품종이, 에탄올 추출물에서 대엽조생, 청일뽕, 강원3호, 희학 및 카타네오 등 5 품종이 2 mg/g 이상의 phenolic compound 함량을 나타내었으며, angiotensin converting enzyme 활성억제효과는 물 추출물에서 백운3호가 $90.9{\pm}4.5%$, 에탄올 추출물에서는 희학 품종이 $81.8{\pm}4.5%$의 활성억제효과를 나타내었다. 또한 xanthine oxidase 활성억제효과는 물 추출물에서 국상20호가 약 10% 정도, 에탄올 추출물에서는 카타네오가 $21.4{\pm}2.3%$의 활성억제효과를 나타내었다. 당분해활성에 관여하는 ${\alpha}$-amylase와 ${\alpha}$-glucosidase 활성억제효과를 측정해 본 결과 물추출물에서만 대엽조생, 수원뽕, 청일뽕, 강원3호, 희학 및 국상20호 등 6품종이 100%의 ${\alpha}$-amylase 저해효과가 관찰되었으며, 백운3호, 대엽조생, 청일뽕 및 희학은 물추출물에서, 대축면, 강원3호 및 국상20호는 에탄올 추출물에서 20% 이상의 ${\alpha}$-glucosidase 저해효과가 확인되었다. 이상의 결과, 높은 생리활성기능을 나타내는 여러 종의 오디의 물과 에탄올 추출물들은 항고혈압 및 항당뇨 효과가 있는 기능성 식품소재로 활용할 수 있을 것으로 판단되었다.

• International Journal of Industrial Entomology and Biomaterials
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• 제33권2호
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• pp.41-49
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• 2016

We bred a mulberry cultivar named Shimgang, through local adaptability test, which is under registration as a new cultivar for fruit production. Local adaptability test had been carried out at four local places(Suwon, Chuncheon, Buan and Jinju) for five years from 2011. This variety 'Shimgang' belongs to Morus Microphylla Buckl. selected from seedlings imported from USA. Shimgang was resistant to popcorn disease and high yielding variety in fruit productivity by 111% compared to control cultivar 'Shimheung(Morus alba L.)' for three years. Although fruits of 'Shimgang' was smaller in size and lower in sugar content of mulberry fruits, it showed stronger resistance than that of 'Shimheung'. It is adaptable to every where except the places where cold and late frost damage happen frequently.

• The Korean Journal of Physiology
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• 제13권1_2호
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• pp.35-40
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• 1979

The present study was undertaken to investigate effect of water extracts of the mulberry leaves (MWE) on arterial blood pressure and respiration in cats. And also studied were depressor responses to intravenously administered MWE in the animals pretreated separately with atropine(2.5 mg/kg), propranolol(2 mg/kg), dibenamine (15 mg/kg), and hexamethonium (1.5 mg/kg) in order to find out the mechanism of depressor activity of MWE. The results obtained were as follows; 1) Following intravenous administration of 0.25 ml/kg and 0.5 ml/kg of MWE into the cat the maximum depressor responses observed were $60.2{\pm}2.3\;mmHg$ and $72.3{\pm}1.7\;mmHg$ respectively. 2) Since depressor responses to intravenously administered MWE were partially inhibited by hexamethonium and markedly by atropine, it is strongly suggested that depressor activity of MWE mainly results from its vagal effects. 3) After administration of MWE respiratory rate was invariably increased following a short period of apnea.

• 한국자원식물학회지
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• 제24권6호
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• pp.675-687
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• 2011

Mulberries have importance in the sericulture industry as food for Bombyx mori, silkworm reared for its silk. Korean Morus alba have many cultivars and, for the protection of these cultivars and for utilization in plant-breeding programs, genetic information and the diversity among cultivars are essential. This study with 14 mulberry genotypes was undertaken using RAPD and ISSR fingerprinting to discover the genetic divergences between cultivars. Polymorphism rate among the cultivars produced by RAPD primer was found to be 64.48% and 66.29% relative to ISSR primer. The genetic relationships among the cultivars were identified using a dendrogram constructed with the UPGMA clustering method. Nei's method was used to calculate the genetic dissimilarity coefficients between each pair of genotypes, and the highest dissimilarity coefficient of 0.246 was exhibited between Suwon and Hwanggum cultivars. To determine the efficiency of each primer, a polymorphic index was calculated, and the robustness of the dendrogram was checked using cophenetic correlation coefficient. The results of this study can be utilized for the improvement of mulberry varieties in plant-breeding programs.