본 연구는 paclobutrazol(PBZ) 처리에 따른 호접란의 생장 반응과 화경유도를 확인하기 위해 수행되었다. 20°C 생식생 장 환경에서 호접란 ‘Mantefon’과 ‘V3’ 실험묘를 0, 100, 200, 400ppm(유효성분 0, 1, 2, 4mg) PBZ 농도로 처리하였고, 28°C 영양생장 환경에서 ‘Mantefon’ 실험묘를 0, 100, 200ppm(유효성 분 0, 1, 2mg) PBZ 농도로 처리하였다. 화경유도 환경에서는 200, 400ppm 처리 식물들의 화경유도율이 감소하고 화경의 출 현이 늦어지는 것을 관찰하였다. 또한 ‘Mantefon’에서 처리 농도 에 상관없이 모든 PBZ 처리구에서 화경의 수가 감소하였다. PBZ 처리는 화경의 길이도 감소시켰으나 개화소요일수나 소화 의 수에는 차이가 없었다. 한편, 영양생장 환경에서는 처리 농도 가 증가할수록 줄기와 뿌리 직경, 잎의 두께는 증가하였고, 반면 에 신엽의 수, 잎의 길이와 폭은 감소하였다. 따라서 PBZ 처리를 받은 식물에서 ‘stunting’ 현상이 나타났다. 영양생장 환경에서 PBZ 처리를 받은 식물을 생식생장 환경으로 옮겼을 때도 앞선 실험에서와 마찬가지로 화경유도율이 감소하고 화경출현일수 가 증가하여서 영양생장 동안의 PBZ 처리 효과가 화경유도에까 지 이어질 수 있다는 것을 확인하였다. 이러한 결과를 통해 PBZ 처리는 호접란의 생장과 화경유도를 제한할 수 있다는 것을 알 수 있었다.

This study was performed to investigate how changing the period of light and dark influences the vegetative growth and the photosynthesis of Doritaenopsis Queen Beer ‘Mantefon’. Clones of Dtps. Queen Beer ‘Mantefon’ at 4-month-old stage were grown in a closed-plant factory system with four different light/dark cycles; 06/06 h, 08/08 h, 10/10 h, and 12/12 h. Temperature and relative humidity were set at 28oC and 80%, respectively, with a photosynthetic photon flux density of 160 ± 10 μmol·m-2·s-1. Repetitive measurements showed that the leaf length and the leaf width were the longest under 12/12 h closely followed by 10/10 h. The fresh weight and the dry weight of leaves and roots were the heaviest at 10/10 h treated samples. Different CO2 uptake patterns were observed from different light/dark cycles. Under 10/10 h and 12/12 h treatments, the CO2 uptake started at early dark period. When the light/dark cycles were shortened to 06/06 h and 08/08 h, the CO2 uptake started at the middle of dark period. Total CO2 uptake amounts were the highest under 12/12 h treatment followed by 10/10 h, 06/06 h, and 08/08 h treatments. Quantitative measurements showed that the vegetative growths under 10/10 h treatment were comparable with that of 12/12 h treatment. These studies indicated that manipulating light/dark can modify the photosynthesis patterns and vegetative growth of Dtps. Queen Beer ‘Mantefon’, resulting in the reduction of the production period.

In this study Muffins adding each 0, 1, 3, 5 7% of Acai Berry powder, which has very high anti-oxidant constituent, have been made, and its quality characteristics have been surveyed. From the volume and specific volume measurement, it has been decreased for MA1, 1% of Acai Berry powder added muffin, but the tendency thereafter has shown increasing (p<0.001). From texture characteristics gumminess and chewiness of MA0, reference group, was the highest by 885.86 g/ cm and 6645.71 g, and has shown decreasing tendency as per the adding rate of Acai Berry powder increased (0.001). The electronics scavenging activity of MA7, 7% added muffin, was the highest by 68.91%, and the ascending order was MA1 < Reference Group < MA3 < MA5 < MA7. From the preference test of Acai Berry powder added muffin, MA3, 3% added muffin, was the most preferable one from color, taste as well as total preference. As the added volume of Acai Berry powder is 5% or more, the typical taste and flavor of Acai Berry gives influence to the taste and flavor of muffin, so the preference level has been decreased. Thus the added volume of Acai Berry powder 5% or more is not recommendable.

중심부 석회화를 동반한 간내 담관암은 국외에서 1예 보고 되었을 정도로 매우 드문 증례이며, 담관내 석회화 소견을 보이는 환자의 감별진단에 있어서 간내 담도암에 대한 고려 와 조직검사가 필요할 것으로 판단되어 중심부 석회화가 동반된 간내 담관암 증례를 보고하는 바이다.

This study was carried out to process canned ask shell with highly quality by management of proper prosessing conditions for prevention of oxidation and discoloration by heating. Ark shell has hemoglobin as blood pigment in red blood shell which same as other cockles. Hemoglobin is easy to come oxidation and browning reaction, and it has large contents of carotenoid as meat pigment. Proximate compositions in ark shell were 76.9% of moisture, 18.1% of crude protein, 1.8% of crude lipid, 1.3% of carbohydrate and 1.6% of crude ash. And contents of carotenoid and hemoglobin were 0.67∼1.02 mg% and 0.98∼1.64/dl, respectively. When the living ark shell was soaked in 2% Nacl solutions, about 89% of mud was removed after 10 hours soaking, and over 91% was removed when the pH was adjusted to 7.5. Carotenoid pigment were prepared that extracted from ark shell by using acetone. And determined visible spectrum were two peak at 452 nm and 687nm, and λ_max were 452 nm. During thermal treatment at 95℃, 111℃, 116℃ and 121℃ for 60 minutes, retention ratio of carotenoid were 71.8%, 66.8%, 64.4% and 36.5%, and after 120 minitues retention ratio were 56.6%, 30.6%, 30.3% and 17.2%, respectively. When heated at 95℃, 111℃, 116℃ and 121℃, formation of browning material were increased at high temperature and long time treatment.

건조과정 중의 amine의 함량 변화는 초기건조 온도의 상승으로 DMA와 TMA의 함량이 건조 9일째까지 급격히 증가하였고, 인공건조의 경우가 자연건조보다 DMA, TMA 함량이 낮게 나타났다. TMAO의 경우, 건조과정 중 분해되어 함량이 감소되어 DMA, TMA 함량과 역상관계를 보였다. DMA와 TMA의 생성은 건조과정에서 생성되고 있으며 유통과정에서 더욱 많이 발생된 것으로 사료되므로 유통에 따른 유해성 문제점을 심각하다고 판정되므로 유통방법 개선이 필요하다고 생각된다.