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2024 | OriginalPaper | Buchkapitel

7. Agar

verfasst von : Ololade Olatunji

Erschienen in: Aquatische Biopolymere

Verlag: Springer International Publishing

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Zusammenfassung

Agar wird aus Rotalgen gewonnen. Es liegt als Mischung aus Agarose und Agaropektin vor, wobei Agarose die wünschenswerteren Eigenschaften hat. Seine Anwendungen werden hauptsächlich seinen rheologischen Eigenschaften zugeschrieben. Solche Anwendungen erstrecken sich auf die Lebensmittel-, Biotechnologie- und Pharmaindustrie, wo Agar als thermoreversibler Geliermittel, Stabilisator, Texturmodifikator und Verdickungsmittel verwendet wird. Die Fähigkeit, als Ersatzadditiv für die aus Tieren gewonnene Gelatine zu dienen, trägt ebenfalls zu seinem wirtschaftlichen Wert bei. In diesem Kapitel werden die Extraktion, Chemie, Vorkommen in der Natur und Anwendungen diskutiert. Dabei werden die wirtschaftlichen und ökologischen Auswirkungen der Agar-Produktion bewertet.

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Literatur
Zurück zum Zitat Alencar POC, Lima CG, Barros FCN, Costa LEC, Freitas ALP (2019) A novel antioxidant sulfated polysaccharide from the algae Gracilaria caudata: in vitro and in vivo activities. Food Hydrocolloids 90:28–34CrossRef Alencar POC, Lima CG, Barros FCN, Costa LEC, Freitas ALP (2019) A novel antioxidant sulfated polysaccharide from the algae Gracilaria caudata: in vitro and in vivo activities. Food Hydrocolloids 90:28–34CrossRef
Zurück zum Zitat Armisen R, Gaiatas F (2009) Agar in: handbook of hydrocolloids. In: Phillips GO, Williams PA (Hrsg) Woodhead Publishing Series in Food Science Technology and Nutrition, S 82–107 Armisen R, Gaiatas F (2009) Agar in: handbook of hydrocolloids. In: Phillips GO, Williams PA (Hrsg) Woodhead Publishing Series in Food Science Technology and Nutrition, S 82–107
Zurück zum Zitat BeMiller JN (2019) Carrageenans in: carbohydrate chemistry for food scientists, 3rd edn. Woodhead Publishing and AACC International, S 279–291 BeMiller JN (2019) Carrageenans in: carbohydrate chemistry for food scientists, 3rd edn. Woodhead Publishing and AACC International, S 279–291
Zurück zum Zitat Bixler HJ, Pose H (2011) A decade of change in the seaweed hydrocolloids industry. J Appl Phycol 23:321–335CrossRef Bixler HJ, Pose H (2011) A decade of change in the seaweed hydrocolloids industry. J Appl Phycol 23:321–335CrossRef
Zurück zum Zitat Chen HM, Yan XJ (2005) Antioxidant activities of agaro-oligosaccharides with different degrees of polymerization in cell-based system. Biochim Biophys Acta 1722:103–111CrossRefPubMed Chen HM, Yan XJ (2005) Antioxidant activities of agaro-oligosaccharides with different degrees of polymerization in cell-based system. Biochim Biophys Acta 1722:103–111CrossRefPubMed
Zurück zum Zitat Chung IK, Beardall J, Mehta S, Sahoo D, Stojkovic S (2011) J Appl Phycol 23:877–886CrossRef Chung IK, Beardall J, Mehta S, Sahoo D, Stojkovic S (2011) J Appl Phycol 23:877–886CrossRef
Zurück zum Zitat Dabrowska A, Rotaru GM, Spano F, Affolter C, Fortunato G, Lehmann S, Derler S, Spencer ND, Rossi RM (2017) A water -responsive, gelatine-based human skin model. Tribol Int 113:316–322CrossRef Dabrowska A, Rotaru GM, Spano F, Affolter C, Fortunato G, Lehmann S, Derler S, Spencer ND, Rossi RM (2017) A water -responsive, gelatine-based human skin model. Tribol Int 113:316–322CrossRef
Zurück zum Zitat Earle M, De Portu G, DeVos E (2016) Agar ultrasound phantoms for low-cost training without refrigeration. Afr J Emerg Med 6:18–23CrossRefPubMed Earle M, De Portu G, DeVos E (2016) Agar ultrasound phantoms for low-cost training without refrigeration. Afr J Emerg Med 6:18–23CrossRefPubMed
Zurück zum Zitat Ellis AL, Norton AB, Mills TB, Norton IT (2017) Stabilization of foams by agar gel particles. Food Hydrocolloids 73:222–228CrossRef Ellis AL, Norton AB, Mills TB, Norton IT (2017) Stabilization of foams by agar gel particles. Food Hydrocolloids 73:222–228CrossRef
Zurück zum Zitat Ellis AL, Mills TB, Norton IT, Norton-Welch AB (2019) The effects of sugars on agar fluid gels and the stabilisation of their foams. Food Hydrocolloids 87:371–381CrossRef Ellis AL, Mills TB, Norton IT, Norton-Welch AB (2019) The effects of sugars on agar fluid gels and the stabilisation of their foams. Food Hydrocolloids 87:371–381CrossRef
Zurück zum Zitat FAO (2018) The state of world fisheries and aquaculture 2018—meeting the sustainable development goals. Rome. Licence: CC BY-NC-SA 3.0 IGO. ISBN 978-92-5-130562-1 FAO (2018) The state of world fisheries and aquaculture 2018—meeting the sustainable development goals. Rome. Licence: CC BY-NC-SA 3.0 IGO. ISBN 978-92-5-130562-1
Zurück zum Zitat Hernandez-Carmona G, Freile-Pelegrin Y, Hernandez-Garibay E (2013) Conventional and alternative technologies for the extraction of algal polysaccharides. In: Functional ingredients from algae for foods and nutraceuticals. Woodhead Publishing Series in Food Science Technology and Nutrition, S 475–516 Hernandez-Carmona G, Freile-Pelegrin Y, Hernandez-Garibay E (2013) Conventional and alternative technologies for the extraction of algal polysaccharides. In: Functional ingredients from algae for foods and nutraceuticals. Woodhead Publishing Series in Food Science Technology and Nutrition, S 475–516
Zurück zum Zitat Incharoen T, Jomjanyouang W, Preecha N (2015) Effects of aqua agar as water replacement for posthatch chicks during transportation on residual yolk-sac and growth performance of young broiler chickens. Anim Nutr 1:310–312CrossRefPubMedPubMedCentral Incharoen T, Jomjanyouang W, Preecha N (2015) Effects of aqua agar as water replacement for posthatch chicks during transportation on residual yolk-sac and growth performance of young broiler chickens. Anim Nutr 1:310–312CrossRefPubMedPubMedCentral
Zurück zum Zitat Justyna K, Macie S, Helena J, Andrzej S, Katarzyna B, Aneta L (2016) Biodegradable thermoplastic polymer composition, method for its manufacture and use thereof. EP3064542A1 Justyna K, Macie S, Helena J, Andrzej S, Katarzyna B, Aneta L (2016) Biodegradable thermoplastic polymer composition, method for its manufacture and use thereof. EP3064542A1
Zurück zum Zitat Kobayashi R, Takisada M, Suzuki T, Kirimura K, Usami S (1997) Neoagarobiose as a novel moisturizer with whitening effect. Biosci Biotechnol Biochem 61:162–163CrossRefPubMed Kobayashi R, Takisada M, Suzuki T, Kirimura K, Usami S (1997) Neoagarobiose as a novel moisturizer with whitening effect. Biosci Biotechnol Biochem 61:162–163CrossRefPubMed
Zurück zum Zitat Kumar V, Fotedar R (2009) Agar extraction process for Gracilaria cliftonii. Carbohyd Polym 78(4):813–819CrossRef Kumar V, Fotedar R (2009) Agar extraction process for Gracilaria cliftonii. Carbohyd Polym 78(4):813–819CrossRef
Zurück zum Zitat Kwon GH, Kwon MJ, Park JE, Kim YH (2019) Whole genome sequence of a freshwater agar-degrading bacterium Cellvibrio sp. KY-GH-1. Biotechnol Rep 23: e00346CrossRefPubMedPubMedCentral Kwon GH, Kwon MJ, Park JE, Kim YH (2019) Whole genome sequence of a freshwater agar-degrading bacterium Cellvibrio sp. KY-GH-1. Biotechnol Rep 23: e00346CrossRefPubMedPubMedCentral
Zurück zum Zitat Lebreton L, Slat B, Ferrari F, Sainte-Rose B, Aitken J, Marthouse R, Hajbane S, Cunsolo S, Schwarz A, Levivier A, Noble K, Debeljak P, Maral H, Schoeneich-Argent R, Brambini R, Reisser J (2018) Evidence that the great Pacific garbage patch is rapidly accumulating plastic. Sci Rep 8(1):4666CrossRefPubMedPubMedCentral Lebreton L, Slat B, Ferrari F, Sainte-Rose B, Aitken J, Marthouse R, Hajbane S, Cunsolo S, Schwarz A, Levivier A, Noble K, Debeljak P, Maral H, Schoeneich-Argent R, Brambini R, Reisser J (2018) Evidence that the great Pacific garbage patch is rapidly accumulating plastic. Sci Rep 8(1):4666CrossRefPubMedPubMedCentral
Zurück zum Zitat Li H, Yu X, Jin Y, Zhang W, Liu Y (2008) Development of an eco-friendly agar extraction technique from the red seaweed Gracilaria lemaneiformis. Bioresour Technol 99(8):3301–3305CrossRefPubMed Li H, Yu X, Jin Y, Zhang W, Liu Y (2008) Development of an eco-friendly agar extraction technique from the red seaweed Gracilaria lemaneiformis. Bioresour Technol 99(8):3301–3305CrossRefPubMed
Zurück zum Zitat Marcus JB (2014). Food science basics: healthy cooking and baking demystified. Culinary nutrition. Academic Press, S 51–97 Marcus JB (2014). Food science basics: healthy cooking and baking demystified. Culinary nutrition. Academic Press, S 51–97
Zurück zum Zitat Martinez-Sanz M, Gomez LG, Rubio AL (2019) Production of unpurified agar-based extracts from red seaweed Gelidium sesquipedale by means of simplified extraction protocols. Algal Res 38:101420CrossRef Martinez-Sanz M, Gomez LG, Rubio AL (2019) Production of unpurified agar-based extracts from red seaweed Gelidium sesquipedale by means of simplified extraction protocols. Algal Res 38:101420CrossRef
Zurück zum Zitat Martins J, Dionisio A, Neves O (2017) Agar gel for anca limestone desalination. Procedia Earth Planet Sci 17(2017):754–757CrossRef Martins J, Dionisio A, Neves O (2017) Agar gel for anca limestone desalination. Procedia Earth Planet Sci 17(2017):754–757CrossRef
Zurück zum Zitat Mizrahi S (2010) Syneresis in food gels and its implications for food quality. In: Chemical deterioration and physical instability of food and beverages. Woodhead Publishing Series in Food Science, Technology and Nutrition, S 324–348 Mizrahi S (2010) Syneresis in food gels and its implications for food quality. In: Chemical deterioration and physical instability of food and beverages. Woodhead Publishing Series in Food Science, Technology and Nutrition, S 324–348
Zurück zum Zitat Olatunji O, Olsson RT (2015) Microneedles from fishscale-nanocellulose blends using low temperature mechanical press method. Pharmaceutics 7:363–378CrossRefPubMedPubMedCentral Olatunji O, Olsson RT (2015) Microneedles from fishscale-nanocellulose blends using low temperature mechanical press method. Pharmaceutics 7:363–378CrossRefPubMedPubMedCentral
Zurück zum Zitat Ouyang Q, Hu Z, Li S, Quan W, Wen L, Yang Z, Li P (2018) Thermal degradation of agar: mechanism and toxicity of products. Food Chem 264:277–283CrossRefPubMed Ouyang Q, Hu Z, Li S, Quan W, Wen L, Yang Z, Li P (2018) Thermal degradation of agar: mechanism and toxicity of products. Food Chem 264:277–283CrossRefPubMed
Zurück zum Zitat Rasmussen RS, Morrissey MT (2007) Marine biotechnology for production of food ingredients. Adv Food Nutr Res 52:237–292CrossRefPubMed Rasmussen RS, Morrissey MT (2007) Marine biotechnology for production of food ingredients. Adv Food Nutr Res 52:237–292CrossRefPubMed
Zurück zum Zitat Rejeki S, Ariyati RW, Widowati LL, Bosma RH (2018) The effects of three cultivation methods and two seedling types on growth, agar content and gel strength of Gracilaria verrucosa. Egypt J Aquat Res 44:65–70CrossRef Rejeki S, Ariyati RW, Widowati LL, Bosma RH (2018) The effects of three cultivation methods and two seedling types on growth, agar content and gel strength of Gracilaria verrucosa. Egypt J Aquat Res 44:65–70CrossRef
Zurück zum Zitat Rhein-Knudsen N, Ale MT, Meyer AS (2015) Seaweed hydrocolloid production: an update on enzyme assisted extraction and modification technologies. Mar Drugs 13:3340–3359CrossRefPubMedPubMedCentral Rhein-Knudsen N, Ale MT, Meyer AS (2015) Seaweed hydrocolloid production: an update on enzyme assisted extraction and modification technologies. Mar Drugs 13:3340–3359CrossRefPubMedPubMedCentral
Zurück zum Zitat Rioux LV, Turgeon SL (2015) Seaweed carbohydrates. In: Tiwari BK, Troy DJ (Hrsg) Seaweed sustainability, S 141–192 Rioux LV, Turgeon SL (2015) Seaweed carbohydrates. In: Tiwari BK, Troy DJ (Hrsg) Seaweed sustainability, S 141–192
Zurück zum Zitat Rocha MRC, Sousa AMM, Kim JK, Magalhaes JMCS, Goncalves MP (2019) Characterization of agar from Gracilaria tikvahiae cultivated for nutrient bioextraction in open water farms. Food Hydrocolloids 89:260–271CrossRef Rocha MRC, Sousa AMM, Kim JK, Magalhaes JMCS, Goncalves MP (2019) Characterization of agar from Gracilaria tikvahiae cultivated for nutrient bioextraction in open water farms. Food Hydrocolloids 89:260–271CrossRef
Zurück zum Zitat Roy S, Rhim J (2019) Agar-based antioxidant composite films incorporated with melanin nanoparticles. Food Hydrocolloids 94:391–398CrossRef Roy S, Rhim J (2019) Agar-based antioxidant composite films incorporated with melanin nanoparticles. Food Hydrocolloids 94:391–398CrossRef
Zurück zum Zitat Sahho D, Elangbam G, Devi SS (2012) Using algae for carbon dioxide capture and biofuel production to combat climate change. Phykos 42(1):32–38 Sahho D, Elangbam G, Devi SS (2012) Using algae for carbon dioxide capture and biofuel production to combat climate change. Phykos 42(1):32–38
Zurück zum Zitat Sasuga K, Yamanashi T, Nakayama S, Ono S, Mikami K (2017) Algal Res 26:123–130CrossRef Sasuga K, Yamanashi T, Nakayama S, Ono S, Mikami K (2017) Algal Res 26:123–130CrossRef
Zurück zum Zitat Sonker AK, Belay M, Rathmore K, Jahan K, Verma S, Ramanathan G, Verma V (2018) Crosslinking agar by diisocyanates. Carbohyd Polym 202:454–460CrossRef Sonker AK, Belay M, Rathmore K, Jahan K, Verma S, Ramanathan G, Verma V (2018) Crosslinking agar by diisocyanates. Carbohyd Polym 202:454–460CrossRef
Zurück zum Zitat Sousa AMM, Alves VD, Delerue-Matos MC, Goncalves MP (2010) Agar extraction from integrated multi trophic aquacultured Gracilaria vermiculophylla: evaluation of a microwave assisted process using response surface methodology. Biores Technol 101(9):3258–3267CrossRef Sousa AMM, Alves VD, Delerue-Matos MC, Goncalves MP (2010) Agar extraction from integrated multi trophic aquacultured Gracilaria vermiculophylla: evaluation of a microwave assisted process using response surface methodology. Biores Technol 101(9):3258–3267CrossRef
Zurück zum Zitat Sudha PN, Gomathi T, Vinodhini PA, Nasreen K, (2014) Marine carbohydrates of wastewater treatment. In: Kim SK (Hrsg) Marine carbohydrates: fundamentals and applications, part B. Elsevier, S 103–143 Sudha PN, Gomathi T, Vinodhini PA, Nasreen K, (2014) Marine carbohydrates of wastewater treatment. In: Kim SK (Hrsg) Marine carbohydrates: fundamentals and applications, part B. Elsevier, S 103–143
Zurück zum Zitat Thannimalay L, Yusoff S, Zawawi NZ (2013) Life cycle assessment of sodium hydroxide. Aust J Basic Appl Sci 7(2):421–431 Thannimalay L, Yusoff S, Zawawi NZ (2013) Life cycle assessment of sodium hydroxide. Aust J Basic Appl Sci 7(2):421–431
Zurück zum Zitat Ubanek AK, Rymowicz W, Mironczuk AM (2018) Degradation of plastics and plastic-degrading bacteria in cold marine habitats 102: 7669–7678 Ubanek AK, Rymowicz W, Mironczuk AM (2018) Degradation of plastics and plastic-degrading bacteria in cold marine habitats 102: 7669–7678
Zurück zum Zitat Wang K, Huang H, Sheng J (1997) Determination of the Mark-Houwink equation parameters and their interrelationship. J Liq Chromatogr Relat Technol 21(10):1457–1470CrossRef Wang K, Huang H, Sheng J (1997) Determination of the Mark-Houwink equation parameters and their interrelationship. J Liq Chromatogr Relat Technol 21(10):1457–1470CrossRef
Zurück zum Zitat Watase M, Nishinari K, Williams PA, Phillips GO (1990) Agarose gels: effect of sucrose, glucose, urea, and guanidine hydrochloride on the rheological and thermal properties. J Agric Food Chem 38(5):1181–1187CrossRef Watase M, Nishinari K, Williams PA, Phillips GO (1990) Agarose gels: effect of sucrose, glucose, urea, and guanidine hydrochloride on the rheological and thermal properties. J Agric Food Chem 38(5):1181–1187CrossRef
Zurück zum Zitat Weiner ML, McKim JM, Blakemore WR (2017) Addendum to Weiner ML (2016) Parameters and pitfalls to consider in the conduct of food additive research, carrageenan as a case study. Food Chem Toxicol 87:31–44. Food and Chem Toxicol 107:208–214 Weiner ML, McKim JM, Blakemore WR (2017) Addendum to Weiner ML (2016) Parameters and pitfalls to consider in the conduct of food additive research, carrageenan as a case study. Food Chem Toxicol 87:31–44. Food and Chem Toxicol 107:208–214
Zurück zum Zitat Xiao Q, Weng H, Xiao A (2019) Physicochemical and gel properties of agar extracted by enzyme and enzyme-assisted methods. Food Hydrocolloids 87:530–540CrossRef Xiao Q, Weng H, Xiao A (2019) Physicochemical and gel properties of agar extracted by enzyme and enzyme-assisted methods. Food Hydrocolloids 87:530–540CrossRef
Metadaten
Titel
Agar
verfasst von
Ololade Olatunji
Copyright-Jahr
2024
DOI
https://doi.org/10.1007/978-3-031-48282-3_7

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