• 한국잠사곤충학회지
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• 제2권
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• pp.73-81
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• 1962

This treatise is to analyze the chemical components in the mulberry varieties which are cultured in Korea and to estimate the nutritive values for them. Some of these varieties were developed lately in this country just by the general breeding aspect of mulberry leaf producing and silkworm raising experimentation without analysing the nutritive values of them which may be differed by various culturing condition. This work will be helpful for the improvement of mulberry varieties and the correct judgement of them. The varieties used for the analysis are as followings; A. Morus bombycis Koridz species. 1.Ichi-Hei. 2. Shimano-Uchi B. Morus alba L. species. 3. Kairyo-Nezumigaeshi. 4. Suwon-Daeyop. 5. Suwon No. 3. 6. Suwon No. 4. 7. Yongchon-Chuwoo. C. Morus Ihou (Ser.) Koidz species. 8. Ro-Soh. The specimens were eventually taken under the air and soil dry season because of the rain shortage during the sampling period and the results are found as a rather different from the normal specimen under the normal climate. Therefore, this treatise will be an important report on a special culturing condition and the nutritive values by the mulberry varieties, and still comparable because they were grown under the same condition. The individual conclusions are; 1. Yongchon-Chuwoo which was originated in this country, was found as an important variety for this country from the aspect of mulberry nutritive value and leaf producing amount, and it is believed that this is the best suitable variety for the soil of Korea. 2. Ichi-Hei occupies the better situation as well as Yongchon-Chuwoo from the nutritive criticizing even though it was originated in Japan. 3. The lately developed Suwon No.3 and No.4 are best from the leaf producing point of view, but they are not found such a good varieties from the nutritive aspect. The result may be happened as poor because they were cut before spring sprout started. 4. Ro-Soh which was normally recognized as a poor variety, was also found as a poor nutritive and leaf producing variety. 5. The crude protein and crude fat components in the mulberry leaves decreased as the leaf maturity was progressed, but the crude fiber and crude ash components increased reversively in general view. It was also found that there were some specific changing nature by the mulberry varieties and could not rule them by just one conclusion. 6. During the air and soil dry season, the ash component increases but the hydrocarbon and moisture contents decrease considerably, and which resulted to the increase of mulberry hardness ratio and the decrease of sugar-protein ratio, eventually it causes the decrease of the nutritive value. It was also found that Ichi-Hei, Ro-Soh, and Suwon No. 3 had a strong recovering nature to their normal nutritive condition after raining. 7. Mulberry is of course a rich calorie diet, and is calculated as 50 to 60 Cal. per gram.

• 한국식품과학회지
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• 제42권6호
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• pp.705-713
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• 2010

뽕잎분말 첨가량을 달리하여 뽕잎가루 첨가빵 제조시 반죽의 이화학적 특성을 조사하였다. 뽕잎분말의 조단백질은 21.25${\pm}$0.19%로 밀가루의 12.46${\pm}$0.06%보다 높았으며, 조섬유는 18.23${\pm}$0.1%로 밀가루에 비해 높은 함량을 보였고, 반죽의 초미세구조는 뽕잎분말 첨가량 증가 시 글루텐의 망상구조가 불연속적이고 파열된 상태로 불안정하였으며 반죽 혼합 시 글루텐 형성을 저해하는 것으로 관찰되었다. 반죽의 물리적 특성인 파리노그램의 반죽도달시간은 뽕잎분말 증가 시 대조구에 비해 시간이 다소 연장되었으며 반죽형성시간은 길어졌고, 안정도는 뽕잎분말 2.0% 이상 첨가구부터 낮았으며 약화도는 증가하였다. 아밀로그램 특성의 호화개시온도는 뽕잎분말 증가 시 변화는 거의 나타나지 않았고 최고점도온도는 뽕잎분말 첨가구와 대조구와의 차이를 보이지 않았으며 최고점도는 뽕잎분말 증가 시 높아지는 경향을 보였다. 익스텐소그램 특성은 뽕잎분말 첨가량 증가시 반죽의 저항도는 크게 감소하였고 신장도의 값도 시간의 경과에 따라 감소하였다. 신장도와 저항도 값의 비율인 R/E값의 변화는 뽕잎분말 증가에 따라 시간 경과 시 R/E값은 감소하였으며, 뽕잎분말을 첨가하는 경우는 반죽의 가스 보유력과 발효 내구력이 밀가루만 사용할 경우보다는 구조가 약화되는 것으로 나타나 제빵시 반죽의 점탄성을 보완하는 산화제, 제빵개량제 등 새로운 원료를 첨가하는 배합비 수정 및 공정의 변화를 고려해야 할 것이다.

• Journal of the Korean Wood Science and Technology
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• 제27권2호
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• pp.31-37
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• 1999

한지제지 공정 중에서 발생하는 백색슬러지와 흑색슬러지를 각각 일정비율(10:90, 20:80, 30:70, 40:60)로 목재 섬유와 혼합하고 PMDI, 요소 및 폐놀수지를 이용하여 목표비중 0.60, 0.75, 0.90 별로 복합보드를 제조한 결과 전반적으로 볼 때 PMDI수지를 적용한 백색슬러지-목재섬유 복합보드나 요소수지를 적용한 흑색슬러지-목재섬유 복합보드의 경우 20% 정도까지의 슬러지 첨가는 거의 통상적인 보드에 대용하는 기계적 성질을 지닌다고 믿어진다.

• 펄프종이기술
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• 제45권1호
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• pp.75-82
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• 2013

The traditional Hanji-making was confronted with lots of industrial disadvantages and economic problems, due to the original hand-made process. Recently, the studies on the automation of overall Hanji manufacturing process is carried out by applying the commercial chemical pulping method in order to expand industrial application or efficiency of non-wood fibrous materials. However, the application of commercial pulping methods to the bast tissues of paper mulberry leads to the chemical and mechanical deterioration of cellulosic fibers. In this study, the optimal cooking method using the bast parts of paper mulberry produced by an auto-scraping device was applied to minimize the damage of fiber strength for the paper yarn manufacture. The pre-steaming treatment and alkaline pulping systems were evaluated in removal efficiency of lignin and pectin materials within the bast tissue of paper mulberry. With the application of pre-steaming treatment and 2 stage pulping system using potassium carbonate and then sodium hydroxide, kappa values were decreased two times more in lignin removal than the single stage of pulping method. It was also identified from SEM images and ATR-FTIR spectra that the pectin components within cellular structure of bast tissue were easily removed and the debarked bast parts by a auto-scraping device were easily defiberized by 2-stage pulping sequence using potassium carbonate/sodium hydroxide pulping system.

• 펄프종이기술
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• 제43권2호
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• pp.16-23
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• 2011

This study was carried out to develop the printing Hanji made of mixed raw materials with mulberry bast fibers and alternative plant fibers such as bamboo, soybean stalks, pepper stalk and sea tangle. All alternative plant fibers were produced by the kraft pulping method with 2 stages of bleaching, and used to prepare the modified traditional paper, Hanji for printing purpose. Printing quality of modified Hanji was analyzed by measuring area and Formcircle of halftones and comparing a letter shape printed on paper. The Hanji made of 60% of mulberry bast fibers and 40% of bamboo bleached kraft pulp showed the best printing quality with the smallest area and the largest Formcircle in all modified Hanji. Through the image analysis of form circles of the letters printed on the Hanji, it could also be confirmed that the best printability of the modified Hanji was made using bamboo fibers.

• 한국잠사학회:학술대회논문집
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• 한국잠사학회 1997년도 Progress and Future Development of Sericultural Science and Technology 40th Anniversary Commemoration Symposium
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• pp.1-21
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• 1997

Silk is praised "Queen of Fiber", which wrote a glorious page in the history of human adornment culture. Thanks to the development of science and technology, silk production has been increased dramatically during last half century. Nowadays, as "Healthy Fiber" silk lets all the globe to be forming the "Silk Boom" Like in other scientific fields, a great deal of progress has been made in sericultural science and technology, which also accelerated the development of multipurpose utilization of sercultural recourses. The main tendency of the sericulture development is raising the quality of cocoon, and at the same time, increasing the output per unit mulberry area and labor production efficiency. The chief measure of raising the cocoon quality is breeding and selecting the new mulberry and silkworm varieties, preventing and curing the diseases and pests and improving the environment of mounting, and the symble for increasing the labor productivity is carrying out the technological system of saving labor and operation ease, and enlarging the production scale. As a natural protein fiber, silk will be still a favorite with human in the next century, because its structure and properties can not be replaced by other any fiber. The 21st century is the biological time, and measures of developing sericulture will use the achievement on the field of molecular biology and biotechnology to carry out the molecular breeding, development regulating, silkworm rearing industrializing, exploiting the new silk and its new usage, utilizing the sericultural resources, and producing the special protein from silkworm as a host of expressing exogenous genes so that make the sericulture to contribute more what it can do for the human being.

• Journal of the Korean Wood Science and Technology
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• 제27권2호
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• pp.23-30
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• 1999

한지제지 공정 중에서 발생하는 백색슬러지와 흑색슬러지를 각각 일정비율(10:90, 20:80, 30:70, 40:60)로 목재 섬유와 혼합하고 PMDI, 요소 및 폐지수지를 이용하여 목표비중 0.60, 0.75, 0.90 별로 복합보드를 제조한 결과 전반적으로 볼 때 백색슬러지를 20% 정도까지 혼합하고 PMDI 수지를 적용하면 통상적인 보드와 유사하거나 오히려 더 좋은 치수안정성을 가지는 것으로 판단된다. 또한 흑색슬러지의 경우는 요소수지를 사용하거나 PMDI 수지의 첨가량을 증가시켜 조절한다면 20%의 슬러지 첨가량까지는 치수안정성 면에서 통상적인 보드와 큰 차이가 없는 보드를 제조할 수 있다고 믿어진다.

• Current Research on Agriculture and Life Sciences
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• 제14권
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• pp.85-100
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• 1996

필리핀의 잠사업은 그 역사가 매우 짧다. 1974년 일본의 잠업기술을 도입하면서부터 양잠에 관심을 갖기 시작하였다. 그후 1990년 한국의 잠업기술자의 도움을 받아 뽕밭을 조성하고 잠실을 지어 양잠을 본격적으로 시작하게 되었다. 따라서 이 나라의 잠업역사가 짧은 것 만큼 뽕나무 재배기술도 몹시 낙후되어 있는 실정이다. 필리핀 고지대의 뽕밭의 현황 및 그 개선책을 요약하면 다음과 같다. 강우량, 기온, 일조시간 및 습도 등은 뽕나무가 자라는데 큰 무리가 없어 보인다. 다만 12월부터 3월까지의 건기에는 뽕밭에 관수를 하거나 뽕밭 주위에 무진장으로 자생하고 있는 풀을 베어서 뽕밭에 피복하여 토양수분을 보존한다. 대부분의 뽕밭이 급경사지에 조성되었는데 등고선에 따라 계단을 만들거나 승수로의 설치등이 되어 있지 않기 때문에 강우시에는 토양의 침식 및 유실이 심하였다. 따라서 계단사면에는 초생재배를 실시하고 계단면에는 유기물을 피복하여 토양의 유실을 방지해야 할 것이다. 토양의 pH 4.7, 유기물함량 1.6%, 유효인산함량은 6ppm이었다. 즉 유기물 함량이 낮은 강산성토양이며 유효인산함량이 극히 낮은 토양이었다. 석회와 유기물을 다량 사용하여 토양을 개량하고 인산비료를 증시해야한다. 소나무 밑에서 재배하고 있는 뽕밭에서는 햇빛이 잘 쪼일 수 있도록 소나무의 곁가지를 전정해주고 석회를 증시한다. 현재의 ha당 시비량 질소-46kg, 인산-18kg, 칼리-18kg은 너무 적은 양이므로 ha당 질소-250kg, 인산-120kg, 칼리-120kg을 시용한다. 전체 뽕밭의 70%에 해당하는 뽕나무가 뽕나무 잎말이 나방피해를 받고 있는 실정인바 DDVP 및 KAFIL 등의 약제 방제를 실시한다. 우기에 많이 발생하는 적삽병은 이병된 뽕잎과 새순은 조기 제거하고 Topsin-M을 살포한다.

• Journal of the Korean Wood Science and Technology
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• 제20권2호
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• pp.43-50
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• 1992

This study was carried out to investgate the possiblity of using waste bamboo and bast fiber from paper mulberry for Hwaseonji production. 3 types of Hwaseonji were made in an experimental system, 100% bamboo pulp, bamboo pulp mixed with bast fiber in two different ratios, 70% : 30% and 40% : 60%, respectively. The result were as follows: 1. The chinese ink blots of Hwaseonji made from bamboo pulp only was satisfactory, but its tensile strength showed a low value. In order to improve the tensile strength, we must develope a new beating method with musilige. 2. The burst strength increased as the bast fiber content increased. But it is a special characteristic of Hwaseonji, that an even formation of paper is required. Therefore, only the short bast fiber is needed. 3. The tensile strength was raised by increasing the bast fiber content to 60%, resulting in a more durable Hwaseonji. 4. In even thickness, the higher opacity showed the more bast fiber. So the opacity of product III (bamboo: 40%, bast fiber: 60%) is the highest. 5. The commodity value of hand-made paper should be grade-up after a dedusting process.

• 펄프종이기술
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• 제41권5호
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• pp.33-37
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• 2009

Hanji is a traditional Korean handmade paper, made of bast fibers of the paper mulberry. Its fiber furnish is much more expensive than wood fiber furnish. Hanji with a low basis weight requires additional opacity and smoothness for better writing and printing. Filler such as calcium carbonate can not be used to raise the opacity of Hanji because of its low retention in low basis weight paper and the high freeness of the Hanji fiber furnish. Addition of red algae pulp, which is prepared from marine red algae to the Hanji fiber furnish negated retention problems happening in the case of mineral filler addition, and produced a substantial improvement in the opacity and smoothness of Hanji. The higher retention was due to the much larger size of the red algae fibers compared to the mineral fillers. The improvement in opacity and smoothness were also due to the shape of the red algae fibers: that red algae fibers are narrower in widths and shorter in lengths than wood fibers results in increased surface area and smoothness.