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Grace N. Palmos,윤보영,강석중,최영준,최병대 한국수산과학회 2008 한국수산과학회지 Vol.41 No.6
The nutritional contribution of mideodeok extracts (ME) on rockfish (Sebastes schlegelii) feed and fish muscle was investigated. Different concentrations of the ME mixed with commercial diet were fed to mature rockfish for 8 weeks. The lipid and ash contents of the formulated diets were relatively similar to the control diet, while increasing the extract concentration increased the moisture content and decreased the protein contents. Major fatty acid components (C18:1n-9, 16:0, C20:5n-3, C22:6n-3) were of comparable quantity. High presence of C18:2n-6 was attributed to soybean oil incorporated in the diets, while the essential fatty acids were within limits (0.9-1.0%). The diet fortified with 6% ME produced the highest feed efficiency, with increased protein content in the muscle as well as lipid content for both muscle and liver. Hepato- and visceral-somatic index values were elevated with increasing ME concentration Muscle fatty acid contents were mostly C18:1n-9 and C16:0, with low absorption of C18:2n-6 in both the muscle and liver. Total highly unsaturated fatty acid content was significantly reduced in the fish muscle, but the values were higher for fish fed with a ME-fortified diet. An increasing trend for eicosapentaenoic acid and docosahexaenoic acid was also observed with increased ME fortification, with liver levels of these compounds remaining within range throughout the duration of the experiment.
Therese Ariane N. Neri,Zuliyati Rohmah,Bernadeth F. Ticar,Grace N. Palmos,최병대 한국수산과학회 2019 Fisheries and Aquatic Sciences Vol.22 No.4
Sporophylls from sea mustard, Undaria pinnatifida, which are by-products in seaweed production industries, were taken from Hansan Island, Tongyeong, and Gijang, Busan, and investigated for their fucoidan content and corresponding antioxidant activities. The extracted fucoidan yield from sporophylls of sea mustard samples from Tongyeong (TF) and Gijang (GF) were 12.1% and 13.6%, respectively. The antioxidant activities assessment of TF and GF extracts showed relative significant difference between samples, suggesting effect of location on bioactivities of fucoidan samples. GF was 50–68% more effective than TF against DPPH and superoxide radicals samples which may be attributed to the difference in their degree of sulfation and monosaccharide composition. Meanwhile, TF exhibited greater scavenging activity against hydroxyl radicals compared to GF which could be due to protein impurities.
Neri, Therese Ariane N.,Rohmah, Zuliyati,Ticar, Bernadeth F.,Palmos, Grace N.,Choi, Byeong-Dae The Korean Society of Fisheries and Aquatic Scienc 2019 Fisheries and Aquatic Sciences Vol.22 No.11
Sporophylls from sea mustard, Undaria pinnatifida, which are by-products in seaweed production industries, were taken from Hansan Island, Tongyeong, and Gijang, Busan, and investigated for their fucoidan content and corresponding antioxidant activities. The extracted fucoidan yield from sporophylls of sea mustard samples from Tongyeong (TF) and Gijang (GF) were 12.1% and 13.6%, respectively. The antioxidant activities assessment of TF and GF extracts showed relative significant difference between samples, suggesting effect of location on bioactivities of fucoidan samples. GF was 50-68% more effective than TF against DPPH and superoxide radicals samples which may be attributed to the difference in their degree of sulfation and monosaccharide composition. Meanwhile, TF exhibited greater scavenging activity against hydroxyl radicals compared to GF which could be due to protein impurities.
정우철,이정태,강석중,최병대,Jeong, U-Cheol,Lee, Jeong-Tae,Palmos, Grace N,Kang, Seok-Joong,Choi, Byeong-Dae 한국생명과학회 2007 생명과학회지 Vol.17 No.9
Effects of muscle fluid concentrates from Styela clava on fish diets were investigated in rainbow trout(Oncorhynchus mykiss). Fish were fed on one of the isonitrogenous(48%) and isolipic(20%) feed containing 5 to 20% of muscle fluid concentrates for 8 weeks. Hematological parameters such as hemoglobin, hematocrit, albumin, glucose, total bililubin, triglyceride and glutamic pyruvate transaminase of the rainbow trout which were fed on the diets varied, but no specific trend became apparent. However, glutamic oxaloacetic transaminase value was significantly higher than that of normal fishes. Therefore, concentrated ascidian fluid which is normally discarded, can be combined with commercial diets for the normal growth of rainbow trout.