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메밀을 첨가한 발효유의 향기성분과 발효특성에 관한 연구
이범선(Beom-Seon Lee),박승국(Seung-Kook Park) 한국식품과학회 2013 한국식품과학회지 Vol.45 No.3
We aimed to improve the flavor quality of plain yogurt, which is known to be sour and less desirable in flavor, varying concentrations of a buckwheat saccharification solution (BSS) were added to milk, followed by fermentation with commercially available mixed strains of lactic acid bacteria. Volatile compounds were analyzed using the gas chromatography-headspace-solid phase microextraction (GC-HS-SPME) method. Fermentation properties, including pH, titratable acidity, viable cells, viscosity, and color value were also measured. Eleven volatile compounds were identified with GC-MS. Of which, diacetyl, butanoic acid, and 2-heptanone proportionally increased as the levels of BSS increased. Undesirable compounds such as acetic acid and 2-butanone, decreased as BSS concentration increased. Fermentation properties were significantly altered with the addition of BSS. Our findings indicate that the flavor quality of plain yogurt can be improved by adding BSS for fermentation, with an additional health benefit from buckwheat.
底面灌水 시스템에서 배양액 농도와 Arbuscular 菌根菌 處理가 盆植 미니 薔薇의 生育 및 開花에 미치는 影響
이범선(Beom Seon Lee),이인호(In Ho Lee),지성희(Seong Hee Ji),손보균(Bo Kyoon Sohn),조자용(Ja Yong Cho),강종구(Jong Goo Kang) (사)한국생물환경조절학회 2004 생물환경조절학회지 Vol.13 No.2
분화장미의 생장에 미치는 배양액 동도와 AMF (Arbuscular Mycorrhizal Fungi) 접종 및 접종시기의 영향을 구명하기 위하여 수행하였다. 연구목적을 달성하기 위하여 저면관수(ebb and flow) 시스템에서 일본 원예시험장 배양액을 6농도(0.125, 0.25, 0.5, 1, 2, 4배)로 처리하고, AMF를 무접종, 삽목시 접종 및 정식시 접종 처리하여 식물을 재배하였다. 배양액 농도가 높아짐에 따라 배지 침출액의 EC가 높아졌으며, AMF무접종 처리구와 삽목시 AMF접종처리구의 배지 침출액 EC변화는 유사하였으나 정식시 AMF접종처리구의 EC는 상대적으로 낮았다. 배지 침출액의 pH변화는 AMF무접종처리구와 삽목시 AMF접종처리구가 서로 비슷한 변화를 나타내었으나 정식시 AMF접종처리구의 경우 pH변화가 크지 않고, 배양액농도가 높을수록 낮아졌다. 배양액의 농도가 높을수록 초장, 건물중과 엽면적이 증가하는 결과를 보였으며, AMF접종처리에 의해 영양생장 및 생식생장(개화단축 및 개화수)의 증가를 보였으며, 특히 삽목시 AMF접종처리보다 정식시 AMF접종처리가 우수하였다. 엽록소 함량에 있어서도 정식시 AMF접종처리구에서 증가하는 경향을 나타내었다. 배양액농도의 증가에 의해 N, P, K, Na 및 Mn의 엽중함량이 증가되었으며, AMF접종에 의해서도 증가되었으며, 정식시 AMF접종처리구가 가장 우수하였다. Objective of this research was to evaluate the effects of nutrient solution strength and Arbuscular Mycorrhizal Fungi (AMF, Glomus sp.) on growth and flowering of potted miniature rose (Rosa hybrids L. cv 'Scarlet'). To achieve this, plants cultured with six different strength of Japanese Horticultural Experiment Station solution (0.125, 0.25, 0.5, 1.0, 2.0, and 4.0 × full strength) and inoculated with AMF at cutting and transplanting. Leachate EC increased as solution strength were elevated. The leachate EC were not different between non-inoculated plants and AMF treatment at cutting, but significantly decreased when plants were inoculated with AMF at transplanting. The elevated strength of nutrient solution resulted in decrease of leachate pH. When plants were inoculated AMF at transplanting, leachate pH was lower than those of non-inoculated plants and inoculated with AMF at cutting. At harvesting (93 days after transplanting), plant height, leaf width, number of branches and shoot fresh and dry weight of rose 'Scarlet' increased with elevated nutrient solution strength. AMF treatment at transplanting of potted rose 'Scarlet' showed the best results in growth such as chlorophyll content, number of flowers, and shortening the days required to flower. The content of N, P, K, and Mn in leaf tissue of potted rose increased by elevated nutrient solution strength and AMF treatment, while the tissue Na contents decreased by an AMF treatment.