This study investigated the quality characteristics of dry-fermented sausage using goat meat and evaluated its applicability. For this, the samples were prepared by dry-fermenting a control (100% pork) and two treatments (50% goat meat replacement or 100% goat meat replacement) for 21days. The moisture content, ㏗ and water activity were decreased in all treatments whereas lactic acid bacteria (LAB), texture profile analysis (TPA) and volatile compounds were increased during dry fermentation periods. In comparison of treatments, the dry-fermented sausage showed no significant difference in proximate compositions, yield, ㏗, water activity, LAB and TPA compared to the control (P>0.05). However, sausages with goat meat also had significantly higher values of C14:1, C18:1t and C18:3 than the control (P<0.05). Analysis of volatile compounds showed increased level of hexanal, octanal and 1-hexanol as replacing pork by goat meat in dry-fermented sausages (P<0.05). Goat meat replacement increased flavor intensity of dry-fermented sausages, but no difference was observed in overall acceptability score of the control and treated samples (P>0.05). Therefore, goat meat could be useful on raw material in dry-fermented sausage as well as pork.

파일럿 규모의 유리화플랜트에서 일련의 시험을 통해 고온 세라믹 캔들 필터 시스템의 주요 운전 변수 및 성능을 평가하였다. 실증 시험결과 매 시험초기에는 필터 표면 먼지층(Dust cake)의 생성으로 인해 필터 매질에 걸리는 차압이 급격히 상승하였다. 그런 다음 차압은 곧 일정한 범위에서 안정되었고, 표면유속(Face velocity)에 비례하여 계속적으로 변화하였다. 이와 반대로, 필터 투과율(Permeability)은 매시험 초기에 급격히 감소하였다. 필터표면 먼지의 역세정은 공기압 3～5 bar범위 일때 효율적이었다. 필터 입구 및 출구에서 동시에 등속으로 채취한 먼지농도를 바탕으로 필터의 먼지 포집율(Dust collection efficiency)을 평가한 결과 필터 성능은 설계값인 99.9%과 같은 것으로 나타났다. 100시간의 장기시험을 포함한 일련의 실증시험을 수행하는 동안 고온 필터 시스템의 성능에 영향을 주는 특별한 문제점은 발견되지 않았다.

In order to vitrify the combustible dry active waste (DAW) generated from Korean Nuclear Power Plants, a glass formulation development based on waste composition was performed. A borosilicate glass, DG-2, was formulated to vitrify the DAW in an induction cold crucible melter (CCM). The processability, product performance, and volume reduction effect of the candidate glass were evaluated using a computer code and were measured experimentally in the laboratory and CCM. The glass viscosity and electrical conductivity as the process parameters were in the desired ranges. Start-up and maintaining glass melt of the candidate glass were favorable in the CCM. The product of the glass product such as chemical durability, phase stability, and density was satisfactory. The vitrification process using the candidate glass was also evaluated assuming that it was operated as economically as possible.

원자력발전소에서 발생하는 이온교환수지와 가연성잡고체 혼합폐기물을 유리화하기 위하여 유도 가열식 저온용융로를 이용한 실증시험을 수행하였다. 금속 티타늄 고리(Ti-ring)를 이용한 유리의 초기점화에 필요한 에너지는 약 290 kWh로 평가되었다. 혼합폐기물의 투입 중 고주파발생기의 출력은 160∼190 kW로 임피던스는 0.55∼0.65 범위 내에서 안정적으로 유지되었다. 이온교환수지 단독투입 시 보다 가연성잡고체와 혼합 할 경우 CO 발생농도는 1/40 정도로 낮아졌는데, 이는 1.8배 정도 높은 연소에너지를 갖는 가연성잡고체가 혼합폐기물의 완전연소를 유도한 것으로 평가되었다. 혼합폐기물의 공급량에 적당한 최적 산소 버블링에 의해 유리 용탕 내부로의 미연폐기물의 함침은 발생하지 않았으며 유리 용탕은 지속적으로 공정 건전성을 유지하였다. 유리 용탕의 부피가 증가하는 팽창(swelling) 현상 때와 정상 일 때 발생가스를 측정, 비교한 결과 swelling 현상 때는 NO와 같이 환원성 가스의 농도 보다 산화성 기체인 의 농도가 높은 것으로 나타났다. 실증시험에 사용된 이온교환 수지와 가연성잡고체의 각각 투입량은 368kg과 751kg 이었으며, 74 정도의 감용비를 달성하였다.

Scientific studies have shown that essential fatty acidintake can have a dramatic impact on human health. Soybean [Glycine max(L.) Merr.] oil from current commercial cultivars typically containsaround 8%linolenic acid (18:3) known as omega-3 fatty acid. Omega-3 fatty acid plays an important role to prevent cardiovascular disease and cancer. Relatively high 18:3 content in seed oil is a trait of the wild soybean (Glycine soja Sieb. and Zucc.) ancestor of modern soybean cultivars. Wild soybean is native to Korean peninsula and recently thousands of wild soybeans collected by soybean researchers in Korea. The objective of this study were to determine the linolenic acid content for wild soybean collection and to determine the stability of linolenic acid content derived from wild soybean over environments. Fatty acid profile for 1,806 wild soybean accessions collected from South Korea was determined by GC. The range of linolenic acid was 7.3 to 23.7% with an average 15.6%. We developed a recombinant inbred population from a cross PI483463 (wild soybean with 15% 18:3) and Hutcheson (cultivar with 8% 18:3). Three RILs, RIL156, RIL159 and RIL166, with high linolenic acid content (over 14%), parents and Williams 82 as checks were grown in nine environments over 2008-2011. Results showed that the content of linolenic acid for the PI483463, Hutcheson, and Williams 82 ranged from 14.8 to 17.1, 8.5 to 9.7, and 6.9 to 8.4 % and averaged 15.4, 9.2 and 8.0%, respectively. However selected RILs 156, 159, and 166 ranged from 10.7 to 15.7, 14 to 15.8, and 14.8 to 15.8, and averaged 13.9, 14.9, and 15.2, respectively. Among the tested accessions, RIL166 was the most stable with the lowest range and CV, and had a relatively lower stability coefficient value than other genotypes. Genes related to high linolenic acid from wild soybean may be useful in developing higher linolenic acid soybean genotypes and would broaden the use of soybean in food applications to improve human nutrition and health.