OPTIMIZATION OF CONDITIONS FOR THE FORMATION OF STABLE GEL FROM AGAR-AGAR
UDC 678.555
Abstract
Red seaweed is an important raw material for obtaining a natural gelling agent, thickener and stabilizer – agar-agar. In the work, agar was isolated from dried red seaweed of the genus Porphyra. The high rheological and gel-forming properties of agar were shown. The dependence of the concentration of the agar solution on the gel-forming ability was obtained. The range of concentrations at which the formation of the gel occurs (1.0–10.0%). The choice of optimal conditions (concentration, temperature) for the production of films has been substantiated. The effect of the plasticizer on the quality of films is shown. A direct dependence of the change in the swelling of the film in water on time and temperature – objective characteristics for their use for practical purposes – has been established. The critical concentration of agar micello formation is 0.05%. At this concentration, the surface activity of agar is 27.1 mJm/kg. An improvement in the properties of textile materials coated with agar solution has been established. Problems that need to be solved with further research are shown.
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Bogolitsyn K.G., Kaplitsin P.A., Kashina Ye.M., Ivanchenko N.L., Kokryatskaya N.M., Ovchinnikov D.V. Khimiya Rastitel'nogo Syr'ya, 2014, no. 1, pp. 243–250. DOI: 10.14258/jcprm.1401243. (in Russ.).
Parshina A.E., Bogolitsyn K.G., Dobrodeyeva L.K., Druzhinina A.S. Aktual'nyye voprosy organicheskoy khimii i bio-tekhnologii: materialy ochnykh dokladov Mezhdunarodnoy nauchnoy konferentsii. [Topical issues of organic chemistry and biotechnology: materials of internal reports of the International scientific conference]. Ekaterinburg, 2020, pp. 622–623. (in Russ.).
Prikhod'ko A.A., Osovskaya I.I., Baranova A.Ye. Vestnik Sankt-Peterburgskogo gosudarstvennogo universiteta tekhnologii i dizayna. Seriya 1: yestestvennyye i tekhnicheskiye nauki, 2021, no. 2, pp. 117–121. DOI: 10.46418/2079-8199_2021_2_19. (in Russ.).
Prikhod'ko A.A., Osovskaya I.I., Baranova A.Ye. Sbornik tezisov IX Mezhvuzovskoy konferentsii-konkursa (s mezhdu-narodnym uchastiyem) nauchnykh rabot studentov imeni chlena-korrespondenta AN SSSR A.A. Yakovkina. [Collection of abstracts of the IX Interuniversity conference-competition (with international participation) of scientific works of stu-dents named after Corresponding Member of the USSR Academy of Sciences A.A. Yakovkin]. St. Petersburg, 2020, pp. 230–231. (in Russ.).
Baranova A.Ye., Osovskaya I.I. Innovatsionnyiy potentsial sovremennoy nauki kak drayver ustoychivogo razvitiya: sbornik nauchnykh statey po itogam mezhdunarodnoy nauchno-prakticheskoy konferentsii. [Innovative potential of modern science as a driver of sustainable development: a collection of scientific articles on the results of an international scientific and practical conference]. St. Petersburg, 2021, pp. 115–117. (in Russ.).
Baranova A.Ye., Osovskaya I.I. Sbornik tezisov IX Mezhvuzovskoy konferentsii-konkursa s mezhdunarodnym uchastiyem nauchnykh rabot studentov imeni chlena-korrespondenta AN SSSR A.A. Yakovkina. [Collection of abstracts of the IX Interuniversity conference-competition with international participation of scientific works of students named after Corresponding Member of the USSR Academy of Sciences A.A. Yakovkin]. St. Petersburg, 2021, pp. 34–35. (in Russ.).
Matsuhashi T. Agar in Food Gels. Elsevier Applied Science; London, 1990, pp. 1–53.
Chapman V.J., Chapman D.J. Seaweeds and their Uses. London; New York, 1980, pp. 148–193.
Donchenko L.V. Pishchevyye gidrokolloidy. [Food hydrocolloids]. Krasnodar, 2013, 180 p. (in Russ.).
Perestenko L.P. Krasnyye vodorosli dal'nevostochnykh morey Rossii. [Red algae of the Far Eastern seas of Russia]. St. Petersburg, 1994, 331 p. (in Russ.).
Aminina N.M., Kadnikova I.A. Voprosy rybovodstva, 2005, vol. 6, no. 2(22), pp. 405–412. (in Russ.).
Podkorytova A.V. Rybnaya promyshlennost', 2004, no. 2, pp. 40–43. (in Russ.).
Podkorytova A.V. Morskiye vodorosli-makrofity i travy. [Marine algae-macrophytes and herbs]. Moscow, 2005, 175 p. (in Russ.).
Kuznetsova T.A., Besednova N.N., Usov V.A. Vestnik khirurgii im. I.I. Grekova, 2020, vol. 179, no. 4, pp. 109–115. DOI: 10.24884/0042-4625-2020-179-4-109-115. (in Russ.).
Manach C., Scalbert A., Morand C., Remesy C., Jimenez L. American Journal of Clinical Nutrition, 2004, vol. 79, no. 5, pp. 727–747, DOI: 10.1093/ajcn/79.5.727.
Cotas J., Leandro A., Monteiro P., Pacheco D., Figueirinha A., Goncalves A.M.M., da Silva G.J., Pereira L. Marine Drugs, 2020, vol. 18, no. 8, pp. 384–431. DOI: 10.3390/md18080384.
Stanley N.F. Agar. Food polysaccharides and their use. CRC Press, Boca Raton, 2006, pp. 186–204.
Osovskaya I.I., Prikhod'ko A.A. Morskiye vodorosli. Primeneniye v biotekhnologii. [Seaweed. Application in biotech-nology]. St. Petersburg, 2020, 78 p. (in Russ.).
Patent 2435787 (RU). 2011. (in Russ.).
GOST R 53655.1-2009. Plenki i listy polimernyye. Opredeleniye udarnoy prochnosti metodom svobodnopa-dayushchego gruza. [GOST R 53655.1-2009. Polymer films and sheets. Determination of impact strength by the free-falling load method]. Moscow, 2010, 7 p. (in Russ.).
GOST 31975-2017. Metod opredeleniya lakokrasochnykh pokrytiy pod uglom 20°,60° i 85°. [GOST 31975-2017. Method for determining paint coatings at an angle of 20°, 60° and 85°]. Moscow, 2017, 19 p. (in Russ.).
GOST ISO 16532-2-2016. Opredeleniye ottalkivayushchey sposobnosti poverkhnosti. [GOST ISO 16532-2-2016. De-termining the repellency of a surface]. Moscow, 2017, 7 p. (in Russ.).
GOST 17206-96. Agar mikrobiologicheskiy. [GOST 17206-96. Agar microbiological]. Minsk, 1997, 9 p. (in Russ.).
Belousova O.S., Dyshlyuk L.S. Nauka XXI veka: teoriya, praktika, perspektivy: sbornik stateĭ Mezhdunarodnoĭ nauch-no-prakticheskoĭ konferentsii. [Science of the 21st century: theory, practice, prospects: collection of articles of the Inter-national Scientific and Practical Conference]. Ufa, 2014, pp. 13–15. (in Russ.).
Shipunov B.P., Markin V.I., Koptev V.I. Khimiya Rastitel'nogo Syr'ya, 2018, no. 1, pp. 53–60. DOI: 10.14258/jcprm.2018013720. (in Russ.).
Markin V.I., Shipunov B.P. Khimiya Rastitel'nogo Syr'ya, 2020, no. 1, pp. 73–80. DOI: 10.14258/jcprm.2020017373. (in Russ.).
Smit R.A., Dem'yantseva Ye.Yu., Andranovich O.S. Izvestiya VUZov. Seriya «Khimiya i khimicheskaya tekhnologiya». 2018, vol. 61, no. 6, pp. 54–60. DOI: 10.6060/tcct.20186106.5696. (in Russ.).
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