• 한국유기농업학회지
• /
• 제14권4호
• /
• pp.421-431
• /
• 2006

본 실험에서는 우분과 왕겨의 혼합수준을 달리하여 지렁이 먹이로 이용하였을 때, 지렁이 생육과 증식에 미치는 영향과 지렁이 분립의 생산량 및 화학적 조성을 조사하여 우분의 효율적인 Vermicomposting의 기초자료로 이용하고자 실시하였다. 그 결과를 요약하면 다음과 같다. 먹이의 탄질율은 $20.43{\sim}31.16$으로 왕겨 혼합수준이 증가함에 따라 탄질비도 높아졌으며 실험기간 동안 지렁이의 생존율은 $97.6{\sim}98.4%$로 나타났다. 산자수는 왕겨혼합구가 $824{\sim}844$ 마리로 순수 우분구의 769마리보다는 유의하게 높게 나타났다(P<0.05). 산자중은 $8.00{\sim}11.80g$ 으로 왕겨 혼합수준이 높을수록 유의하게 높아져 왕겨 40% 혼합구가 가장 높았다(P<0.05). 지렁이 분립생산은 왕겨 혼합수준이 높을수록 낮게 나타났으며 소화량은 이와는 반대로 왕겨 혼합수준이 높을수록 높은 경향이었다. 분립의 탄질율은 왕겨 혼합수준이 높을수록 높아져 왕겨 40% 혼합구가 다른 구보다 유의하게 높았다(P<0.05). 중금속 함량은 왕겨 혼합수준이 높을수록 낮아지는 경향이었다.

• Journal of Biosystems Engineering
• /
• 제25권1호
• /
• pp.47-54
• /
• 2000

This study was performed to determine desorption equilibrium moisture contents of rough rice, brown rice, white rice and rice hull grown in Korea. EMC values were measured by static method using saturated salt solutions at three temperature levels of 2$0^{\circ}C$, 3$0^{\circ}C$ and 4$0^{\circ}C$ and eight relative humidity levels in the range from 11.2% to 85.0%. The measured EMC values were fitted to modified Henderson, Chung-Pfost , and modified Oswin models by using nonlinear regression analysis. The results of comparing root mean square errors for three models showed that modified Henderson and CHung -Pfost models could serve as good models, and that modified Oswin model could not be available for rough rice, brown rice, white rice and rice hull.

• 한국유기농업학회지
• /
• 제19권4호
• /
• pp.513-528
• /
• 2011

This study was conducted to evaluate the nutritional value of locally produced organic agricultural by-products to substitute imported organic feeds for organic ruminant farming. Imported organic feeds (corn grain, soybean meal, soybean seed, oat grain, barley grain, wheat grain, buckwheat, sunflower seed meal) and byproducts (rice bran, grape seed meal, rice straw, soybean hull, soybean curd, rice hull, green kernel rice, and crushed rice grain) were analyzed for chemical composition and NDF, ADF, mineral, and amino acid contents and anti-nutritional factors. Dry matter, NDF and ADF contents in organic feeds were higher than those in conventional feeds. Especially, the 9.65% fat content of organic soybean meal was 6 times higher than the 1.95% fat content of conventional soybean meal. Fat contents of rice bran, grape seed meal, green kernel rice, and crushed rice grain were 25.66, 6.09, 3.57 and 1.59%, respectively. Protein contents of soybean hull and soybean curd were 14.68 and 19.87%, respectively, which are highest among organic by-products. Levels of aflatoxin in all feeds were below the safety level. Therefore, organic rice bran, green kernel rice and crushed rice as energy source, and soybean hull and soybean curd as protein source could partial replace imported feeds for organic ruminant farming.

• Applied Biological Chemistry
• /
• 제37권6호
• /
• pp.487-491
• /
• 1994

나락을 열풍팽화기로 팽화시켜 현미와 왕겨의 결정화도, 당화율, 농약잔류량의 변화를 비교하였다. 나락의 팽화처리로 쌀전분의 결정화도가 감소하였으나 왕겨의 결정화도는 큰 변화가 없었다. 찰벼의 팽화처리는 자숙처리에 비하여 엿기름 amylase에 의한 당화율이 높았으며 왕겨의 cellulase에 의한 가수분해율은 팽화처리시 $14{\sim}30%$ 상승되었다. 나락의 팽화처리로 왕겨와 현미 중의 농약(diazinon)의 잔류량 감소는 메벼에서 현저하였고, 팽화전에 비하여 현미와 왕겨에서 각각 42.7%, 47.6% 잔류되었다.

• 한국자원식물학회지
• /
• 제12권3호
• /
• pp.171-178
• /
• 1999

느타리버섯 균사 배양에 배지의 최적 혼합비를 구하기 위해 주재료인 면실피, 톱밥, 볏짚과 부재료인 제올라이트, 옥수수강, 탈지강, 백솜, 이분, 왕겨, 피이트를 사용하였다. 주재료인 면실피 톱밥 : 볏짚의 최적 혼합비는 6: 3: 1 (V/V, %)이었으며 각각 부재료의 최적 혼합비는 제올라이트 1%, 옥수수강 3%, 탈지강 5%, 백솜 1%, 이분 1%, 왕겨 7%의 순으로 균사생장과 밀도가 양호하였다. 주재료에 부재료 두 종류씩 혼합하였을때 최적 혼합비는 제올라이트:옥수수강의 경우 2:2(V/V, %), 탈지강과 백솜의 경우 3:2(V/V, %), 이분과 왕겨의 경우 1:3(V/V, %)이었다. 이를 다시 주재료와 부재료 모두를 함께 혼합할 경우 면실피 :톱밥 : 볏짚 : 제올라이트 : 옥수수강 : 탈지강 : 백솜 : 이분 : 왕겨 : 피이트를 43.0 : 17.2 : 25.8 : 2.0 : 2.0 : 3.0 : 2.0 : 1.0 : 3.0 1.0(V/V, %)로 혼합하였을 때 균사생장과 밀도가 모두 양호하였다.

• 한국식품조리과학회지
• /
• 제8권3호
• /
• pp.291-296
• /
• 1992

The physicochernical properties of Korean buckwheat starches were investigated. The results were as follows; 1. Water binding capacity of kangwon hull buckwheat starch was 106.55% and that of Kangwon rice buckwheat was 99.35%. 2. The pattern of change in swelling power of hull buckwheat starch for increasing temperature started to increase at 60$^{\circ}C$ and increased rapidly from 80$^{\circ}C$, and that of rice buckwheat increased slowly from 60$^{\circ}C$ to 90$^{\circ}C$. 3. The ranges of gelatinization temp. of hull buckwheat and rice buckwheat starches were 70~75$^{\circ}C$ and 75~85$^{\circ}C$, respectively. 4. The blue value of hull buckwheat starch and rice buckwheat starch were 6.25 and 0.62, respectively. 5. The alkali number of hull buckwheat starch and rice buckwheat starch were 1.28 and 3.68 respectively. 6. The amylose content of hull buckwheat and rice buckwheat starch were 32.26% and 38.09%. 7. Periodate oxidation of hull buckwheat starch resulted that amylose had me average molecular weight of 103, 004, degree of polymerizatlon of 572 and amylopectin had me degree of branching of 7.64, glucose unit per segment of 13.09, and periodate oxidation of rice buck wheat starch resulted mat amylose had me average molecular weight of 125, 654, degree of polymerization of 698 and amylopectin had degree of branching of 6.59, glucose unit per segment of 15.16.

• 한국자원식물학회지
• /
• 제14권3호
• /
• pp.213-219
• /
• 2001

왕겨는 매년 120만톤을 생산하여 농산부산물 활용으로 훈탄, 가축분뇨 수분흡수제로 사용하여 왔으나, 금번 왕겨의 효율적인 사용을 구명하기 위하여 버섯 종류별, 왕겨 첨가별 사용에 따른 버섯 생육특성과 수량이 양호할 뿐만 아니라 생육기간 단축과 톱밥대체용 저비용 왕겨 배지개발로 버섯재배 농가에 경영비절감에 한몫을 기여하게 되어 결과를 요약하면 1. 애느타리 병재배시 관행 대비 왕겨 80% 첨가구에서 재배기간 11일 단축과 수량 7% (68g/병)증수하였다. 2. 느타리 병재배시 관행대비 왕겨 30, 50, 80%첨가구에서 균사배양기간이 2∼3일 단축되는 경향과 수량성이 대등하였으나 농가재배에서는 관행 수량 115g/850cc 대비 왕겨30, 50, 80% 첨가구에서는 150g/850cc, 161g/850cc, 120g/850cc로 32%, 40%, 4%, 각각 증수 하였다. 3. 버들송이 병재배시 관행재배에서 균배양 기간이 31일 소요되나 왕겨 30∼40%첨가구에서 균배양 6일 단축과 수량 6% (115g/병)가 증수 하였다. 4. 영지 병재배시 관행 균사배양일수 45일, 수량 38g/병 대비 왕겨 30∼40% 첨가구에서 균사배양, 수량성 대등하였고, 농가에서는 관행수량 30g/병 대비 왕겨 30%, 50% 첨가시 34g/병, 32g/병으로 13%, 7%각각 증수하였다.

• 한국토양비료학회지
• /
• 제48권5호
• /
• pp.340-350
• /
• 2015

This experiment was carried out to find out the mitigation of greenhouse gases (GHGs) emission and changes of soil carbon contents in the cropland. In order to minimize the soil disturbance, this study was conducted without crop cultivation at the pots treated with different biomass. Different biomass was buried in the soil for 12 months. Decomposition rates of expander rice hull, pig manure compost and carbonized rice hull were 18%, 11~11.5% and 0.5~1.2%, respectively. It was appeared that carbonized rice hull was slightly decomposed. No difference was shown between chemical fertilizer treatment plot and non-application plot. It was appeared that soil carbon content in the non chemical fertilizer application plot was high when compared to its chemical fertilizer. Its content at soil depth of 20 cm more decreased than the upper layer of soil. Accumulative emission of $CO_2$ with different treatments of biomass was highest of 829.0~876.6 g $CO_2m^{-2}$ in the application plot of PMC (Pig Manure Compost) regardless of chemical fertilizer treatment during 16 months of experiment. However, the emission for expander rice hull treatment plot was lowest of 672.3~808.1 g $CO_2m^{-2}$. For application plot of the carbonized rice hull, it was shown that non chemical fertilizer plot, 304.1 mg $N_2Om^{-2}$, was higher than the chemical fertilizer treatment, 271.6 mg $N_2Om^{-2}$. Greenhouse gas emissions in the PMC treatment were highest of 0.94 ton $CO_2eqha^{-1}yr^{-1}$. However, it was estimated to be the lowest in the expander rice hull treatment.

• 한국유기농업학회:학술대회논문집
• /
• 한국유기농학회 2009년도 하반기 학술대회
• /
• pp.315-315
• /
• 2009

Component analysis and physico-chemical properties of wood and rice hull vinegars were conducted in order to promote the utilization of these environment-friendly materials. Results showed that wood vinegar had higher specific gravity (2.5) and tar content (0.3%), but lower acid content (1.0%) than rice hull vinegar (1.7, 0.05% and 4.4%, respectively). GC-MS component analysis revealed that rice vinegar had higher phenol content (34%) than wood vinegar (11.49%). Acetic acid and propionic acid were also higher in rice hull vinegar. On the contrary, wood vinegar had higher Furancarboxyl aldehyde content (41.6%) than rice hull vinegar (0.67%). Thus, different results in DPPH radical electron donating-abilities were obtained due to different percent composition of each vinegar.

• 한국농공학회지
• /
• 제31권1호
• /
• pp.31-44
• /
• 1989

In the vinyl house cultivation, the water consumption, evapotnanspirafion ratio, growth condifion by the growing stages and yields of tomato and cucumber were investigated when they cultivated by nutriculture, rice hull charcoal culture and NFF culture. The results obtained are summarized as follows: 1. The mean air temperature in the vinyl house during the experimental perica j was 1.9$^{\circ}$C higher than the outdoor air temperature, the rrnocirnum and minimum air temperature in the vinyl house was 4.6C and 1.7$^{\circ}$C higher than the outdoor temperature, respectively, and the mean daily evaporation in the vinyl house during the experimental period was 4.3rnm that is 02rnrn more than the outdoor evaporation 2. In the tomato cultivation, the growth of rice hull charcoal culture was the best among the three methods, and the growth of NFT culture and nutriculture were worse than the soil cultivation which is standard, and among the nutriculture, the growth of EC 1.3m.mho plot was the best. 3. In the cucumber cultivation, the growth of rice hull charcoal culture was the best, and while the growth condition of NFT culture was worse than the standard soil cultivation, the growth of nutriculture was better than the standard soil cultivation, and the growth of EC 1.3m.mho plot was the highest among the different treatments in the nutriculture. 4. In the tomato cultivation, the total water consumption of rice hull charcoal culture plot was 1107.5rnm which is the highest amount among the three methods, and in the nutriculture, the total water consumption of EC 1.3m.mho plot was 22lAmm which is the highest among the three different treatments. 5. In the cucumber cultivation, the total water consumption of rice hull charcoal culture was 11762rnm which is the highest, and the total water consumption of EC 1.3m.mho plot was 284.9rnm which is more than the 278.9mm of EC 1.Smmho plot and 262.9mm of EC 1.7rnmho plot. 6. The crop coefficient(Kc) of tomato was 0.82 in NFT culture, 4.67 in rice hull charcoar culture and 0.86~0.91 in nutriculture. 7. The crop coefficient(Kc) of cucumber was higher than tomato as 1.13 in NFT culture, 520 in rice hull charcoal culture and 1.08~1.19 in nutriculture. 8. The evapotranspiration ratio in the mid and late season were higher than the beginning and elongation stage, and the average evaportranspiration ratio of tomato and cucumber was 3.81 and 424, respectively, in the rice hull charcoal culture plot. 9. In the tomato cultivation, the total yield per plant of rice bull charcoal culture was 1443.Og which is the highest, and in the nutriculture, their yields were worse because of the damage of downy nidew disease. 10. In the cucumber cultivation, the total yield per plant of rice hull charcoal culture was 1965.7g which is the highest, and while the yield of NFT culture was ahout 25% lower than the stadard soil cultivation, the yield of nutriculture was higher than the standard soil cultivation, and among the treatments in the nutriculture, the yield of EC 1.3m.mho plot was the highest.