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류홍수,문숙임,이강호 한국수산학회 1992 한국수산과학회지 Vol.25 No.5
조미훈연 오징어(Neon flying squid, Ommastrephes bartrannii)의 적절한 가공조건을 찾기 위하여 일반성분변화 및 단백질 품질변화를 측정하였다. 수분, 조단백질함량은 매우 감소하였으나(p$lt;0.05) 지방, 회분함량은 그다지 증가하지 않았다. 조미, 훈연은 TBA가의 증가를 초래하였다. 여러가지 가공단계들은 Tl함량을 크게 증가시키지는 않았다. 오징어 가공전단계를 통해 측정된 Tl함량은 같은 가공단계에서의 TBA가와 서로 관련이 없었다. Steak용으로 가공한 것을 제외한 모든 가공품들의 경우, 소화율과 C-PER, DC-PER이 증가하였다. 생시료의 경우, 북태평양산 빨강오징어(몸통, 다리 양쪽 모두)의 효소 소화율은 다른 오징어종에 비해 상당히 낮았다. Changes in proximate composition and protein quality were determined to find out appropriate processing conditions of the seasoned and smoked squid(Neon flying squid, Ommastrephes bartrannii). Moisture and crude protein contents were severely reduced (p$lt;0.05), while increasing of fat and ash contents were not apparent. Seasoning and smoking contributed in enhancing TBA value. Trypsin inhibitor(TI) content was not increased severely after those processing steps. TI content checked in the all steps of squid processing was not correlated with the TBA value of squid in the same processing step. An improved digestibility and protein efficiency ratio(PER) were observed in the all products except with steak(mechanically soften product). In vitro enzymatic digestibilities of both raw Neon flying squid meats(mantle and arm) were significantly inferior(p$lt;0.05) to other squid species.
해조단백질 추출에 관한 연구 : 3. NaOH 가용성 단백질의 추출 3. Extraction of NaOH Soluble Proteins
류홍수,우순임,이강호 한국수산학회 1978 한국수산과학회지 Vol.11 No.2
In present study, the effect of various factors including the solvent concentration, extraction time, extraction temperature and the ratio of sample vs extraction solvent(w/v) upon the extractability of the NaOH soluble proteins of marine algae were investigated. Seven species of sun-dried algae, the major ones in consumption as food, namely Porphyra suborbiculata, Undaria pinnatifida(natural and cultivated), Sargassum fulvellum, Sargassum kjellmanianum, Ulva pertusa, Enteromorpha linza and Codium coarctatum were used for the extraction of the NaOH soluble protein. The frozen and masceratd samples were prepared by the same method described in previous paper(Lee, 1977). In case of the TCA insoluble protein, all samples reached maxima at 0.025M NaOH solution while the 0.05M for the extractable total nitrogen. Variation of the ratio of sample vs solvent gave slight effect upon the extractability, 100ml solvent added to 1g dried sample was effective. The effect of extraction time on the extractability differed from species. The extractabilty of Enteromorpha linza, Ulva pertusa and Codium coarctatum reached maxima within 1 hour extraction and 2 hours for the cultivated Undaria pinnatifida while 3 hours for the natural Undaria pinnatifida, Sargassum fulvellum, Sargassum kjellmanianum and Porphyra suborbiculata. The most effective extractionn temperature was 60℃ for all samples.