Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Changes in Nutrient and Pigment Contents of Laver Pyropia yezoensis Based on Heating Process and Storage

방사무늬김(Pyropia yezoensis)의 가열조건 및 저장기간에 따른 영양소와 색소함량의 변화

  • Nguyen, Thanh Tri (Department of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University) ;
  • Choi, Yong-Jun (Department of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University) ;
  • Nguyen, Thi Hong Phuong (Department of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University) ;
  • Neri, Therese Ariane (Department of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University) ;
  • Choi, Byeong-Dae (Department of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University)
  • ;
  • 최용준 (경상대학교 해양식품공학과/해양산업연구소) ;
  • ;
  • ;
  • 최병대 (경상대학교 해양식품공학과/해양산업연구소)
  • Received : 2018.03.20
  • Accepted : 2018.04.18
  • Published : 2018.06.30
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Abstract

Various types of dried laver Pyropia yezoensis have been produced in response to increasing demand and other laver goods manufactured using different processing methods are continuously being developed. The dried laver used in this experiment was initially heated at $165^{\circ}C$ for 3 seconds, followed by second heating at a high temperature ($340-350^{\circ}C$) to increase the storage period and enhance taste and flavor. Nutrient analysis of each sample heated under three conditions revealed that the protein and lipid contents were highest in samples from D company, while the carbohydrate contents remained relatively stable. After storage for 10 weeks at room temperature, changes in the composition were evaluated. The results showed decrease in protein (30%-49%) and essential amino acid contents. During storage, the major unsaturated fatty acids contained in dried laver slightly changed to 53.4%-56.0% in the form of EPA, while saturated fatty acids slightly increased to 18.4%-22.6% in the form of palmitic acid. The variables derived from fatty acid composition, such as atherogenic and thrombogenic, and hypocholesterolemic/hypercholesterolemic dietary indices, and polyunsaturated fatty acids/saturated fatty acids ratio, also indicated reasonable levels of stability. However, the laver should be consumed within 2 months.

Keywords

References

  1. AOAC. 2005. Official Method of Analysis of AOAC Intl., 18th ed. Method 934.01, 979.09A, 920.39, 942.05. Association of Official Analytical Communities, Gaithersburg, MD, U.S.A.
  2. AOCS. 1990. AOCS Official Method Ce 1b-89. In Fatty Acid Composition by GLC, Marine Oils. Champaign, IL: Author. Open Access Library. Retrieved from https://www.oalib.com/references/ 8496404 on Mar 8, 2015
  3. Beer S and Eshel A. 1985. Determining phycoerythrin and phycocyanin concentrations in aqueous crude extracts of red algae. Aust J Mar Fresh Res 36, 785-792. https://doi.org/10.1071/MF9850785
  4. Bligh EG and Dyer WJ. 1959. A rapid method of total lipid extraction and purification. Can J Biochem Physio 37, 911-917. http://dx.doi.org/10.1139/059-099.
  5. Cho SM, Kim BM, Han KJ, Seo HY, Han YN, Yang EH and Kim DS. 2009. Current status of the domestic processed laver market and manufactures. Food Sci Indus 42, 57-70.
  6. Dawczynski C, Schubert R and Jahresis G. 2007. Amino acids, fatty acids, and dietary fiber in edible seaweed products. Food Chem 103, 891-899. http://dx.doi.org/10.1016/j.food-chem.2006.09.041.
  7. DuBois M, Gilles KA, Hamilton JK, Rebers PA and Smith F. 1956. Colorimetric method for determination of sugars and related substances. Anal Chem 28, 350-356. http://dx.doi.org/10.1021/ac60111a017.
  8. Hodoki Y and Murakami T. 2006. Effects of tidal flat reclamation on sediment quality and hypoxia in Isahaya Bay. Aquatic Conservation: Mar Fresh Ecosys 16, 555-597. http://dx.doi.org/10.1002/aqc.723.
  9. Hong SP, Koo JK, Jo KS, Kim DS. 1997. Physicochemical characteristics of water of alcohol soluble extract from laver, Porphyra yezoensis. Korean J Food Nutr 26, 10-16.
  10. Hwang ES. 2013. Composition of amino acids, minerals, and heavy metals in differently cooked laver (Porphyra tenera). J Korean Soc Food Sci Nutr 42, 1270-1276. http://dx.doi.org/10.3746/jkfn.2013.42.8.1270.
  11. Ishihara K, Oyamada C, Sato Y, Danno H, Kimiya T, Kaneniwa M, Kunitake H, Muraoka T. 2008. Relationships between quality parameters and content of glycerol galactoside and porphyra-334 in dried laver nori Porphyra yezoensis. Fish Sci 74, 167-173. https://doi.org/10.1111/j.1444-2906.2007.01506.x
  12. Jayasankar R. 2004. Photosynthetic efficiency of marine algae from Mandapam coast. Seaweed Res Utiln 26, 185-190.
  13. Jo KS. 2003. Effect of storage conditions on quality stability of dried laver (Porphyra tenera). Korean J Food Preserv 10, 32-36.
  14. Jung SM, Kang SG, Lee HJ, Son JS, Jeon JH and Shin HW. 2016. Proximate composition and mineral content, amino acid of laver based on culture areas. Korean J Environ Ecol 30, 98-103. http://dx.doi.org/10.13047/KJEE.2016.30.1.098.
  15. Kang HI, Seung Ho and In HJ. 1987. Quality changes of dried lavers during processing and storage. Bull Korean Fish Soc 20, 408-528.
  16. Kim KW, Hwang JH, Oh MJ, Kim MY, Choi MR and Park WM. 2014. Studies on the major nutritional components of commercial dried lavers (Porphyra yezoensis) cultivated in Korea. Korean J Food Preserv 21, 702-709. http://dx.doi.org/10.11002/kjfp.2014.21.5.702.
  17. KMI (Korea Maritime Institutue/Fisheries Outlook & Issue center). 2018. Seaweed. Retrieved from http://www.foc.re.kr/rbs/data/files/obsbook/1/201801032206041.pdf on Jan 30, 2018.
  18. KS (Korean Industrial Standards). 2004. Dried laver (H6025). Retrieved from http://www.kssn.net/StdKS/KS_detail.asp?K1=H&K2=6025&K3=4 on Dec 12, 2017.
  19. Kumar P, Ramakritinan CM and Kumaraguru AK. 2010. Solvent extraction and spectrophotometric determination of pigments of some algal species from the shore of Puthumadam, Southeast Coast of India. Inter J Ocean Oceanogra 4, 29-34.
  20. Lee KH, Ryuk JH, Jeong IH and Jung WJ. 1990. Quality changes of dried lavers during processing and storage. 3. Changes in pigments, trypsin indigestible substrates (TIS) and dietary fiber content during during roasting and storage. Korean J Fish Aquat Sci 23, 280-288.
  21. Lichtenthaler, H.K. and A.R. Wellburn. 1985. Determination of total carotenoids and chlorophylls A and B or leaf in dissolved solvents. Biol SocTrans 11, 591-592.
  22. Lin R, Stekoll MS. 2011. Phycobilin content of the conchocelis phase of Alaskan Porphyra (bangiales, rhodophyta) species: responses to environmental variables. J Phycol 47, 208-214. http://dx.doi.org/10.1111/j.1529-8817.2010.00933.x.
  23. MOF (Ministry of Oceans and Fisheries). 2014. Seawater quality. Ministry of Maritime Affairs and Fisheries. Korean J Fish Aquat Sci 20, 408-418.
  24. Oh SJ, Kim JI, Kim HS, Son SJ and Choe EO. 2013. Composition and antioxidant activity of dried laver, Dolgim. Korean J Food Sci Technol 45, 403-408. http://dx.doi.org/10.9721/KJFST.2013.45.4.403.
  25. Santos-Silva J, Bessa RJB and Santos-Silva F. 2002. Effect of genotype, feeding system and slaughter weight on the quality of light lambs. Livestock Prod Sci 77, 187-194. http://dx.doi.org/10.1016/S0301-6226(02)00059-3.
  26. Shpigel M, Ragg NL, Lupatsch I and Neori A. 1999. Protein content determines the nutritional value of the seaweed Ulva lactuca L for the Abalone haliotis tuberculata L. and H. Discus Hannai Ino. J Shellfish Res 18, 227-233.
  27. Smichi N, Abdelmalek BE, Kharrat N, Sila A, bougatef A, Gargouri Y and Fendri A. 2017. The effects of storage on quality and nutritional aspects of farmed and wild sea bass (Dicentrachus labrax) muscle: In vitro oils digestibility evaluation. Fish Resear 188, 74-83. http://dx.doi.org/10.1016/j.fishres.2016.12.003.
  28. Son KT, Kwon JY, Jo MR, Choi WS, Kang SR, Ha NY, Shin JW, Park KB and Kim JH. 2012. Heavy metals (Hg, Pb, Cd) content and risk assessment of commercial dried laver Porphyra sp. Korean J Fish Aquat Sci 45, 454-459.
  29. Son SJ and Choe EO. 2014. Toasting effects on the lipid oxidation, antioxidants, and pigments of dried laver (Porphyra spp.). Korean J Food Sci Technol 46, 677-681. http://dx.doi.org/10.9721/KJFST.2014.46.6.677.
  30. Zhang Q, Li N, Liu X, Zhao Z, Li Z and Xu Z. 2004. The structure of a sulfated galactan from Porphyra haitanensis and its in vivo antioxidant activity. Carbohy Res 339, 105-111.. http://dx.doi.org/10.1016/j.carres.2003.09.015.