<!DOCTYPE article
PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.4 20190208//EN"
       "JATS-journalpublishing1.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" article-type="research-article" dtd-version="1.4" xml:lang="en">
 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">54688</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Общая биофизика</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>General biophysics</subject>
    </subj-group>
    <subj-group>
     <subject>Общая биофизика</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Change in the optical density spectrum of the batch culture Arthrospira (Spirulina) Platensis</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Изменение спектра оптической плотности накопительной культуры Arthrospira(Spirulina) Platensis</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Клочкова</surname>
       <given-names>В С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Klochkova</surname>
       <given-names>V S</given-names>
      </name>
     </name-alternatives>
     <email>viki-iki@mail.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Лелеков</surname>
       <given-names>А С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Lelekov</surname>
       <given-names>A S</given-names>
      </name>
     </name-alternatives>
     <email>a.lelekov@yandex.ru</email>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Геворгиз</surname>
       <given-names>Р Г</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shiryaev</surname>
       <given-names>A V</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ширяев</surname>
       <given-names>А В</given-names>
      </name>
      <name xml:lang="en">
       <surname>Gevorgiz</surname>
       <given-names>R G</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Бучельников</surname>
       <given-names>А С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Buchelnikov</surname>
       <given-names>A S</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шупова</surname>
       <given-names>Е В</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shupova</surname>
       <given-names>E V</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Севастопольский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Sevastopol State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">ФИЦ «Институт биологии южных морей имени А.О. Ковалевского РАН»</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Federal Research Center A.O. Kovalevsky Institute of Biology of the Southern Seas of the RAS</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">ФИЦ «Институт биологии южных морей имени А.О. Ковалевского РАН»</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Federal Research Center A.O. Kovalevsky Institute of Biology of the Southern Seas of the RAS</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">ФИЦ «Институт биологии южных морей имени А.О. Ковалевского РАН»</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Federal Research Center A.O. Kovalevsky Institute of Biology of the Southern Seas of the RAS</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Севастопольский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Sevastopol State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Севастопольский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Sevastopol State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2021-12-25T20:22:29+03:00">
    <day>25</day>
    <month>12</month>
    <year>2021</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2021-12-25T20:22:29+03:00">
    <day>25</day>
    <month>12</month>
    <year>2021</year>
   </pub-date>
   <volume>6</volume>
   <issue>4</issue>
   <fpage>543</fpage>
   <lpage>547</lpage>
   <history>
    <date date-type="received" iso-8601-date="2021-12-20T20:22:29+03:00">
     <day>20</day>
     <month>12</month>
     <year>2021</year>
    </date>
    <date date-type="accepted" iso-8601-date="2021-12-20T20:22:29+03:00">
     <day>20</day>
     <month>12</month>
     <year>2021</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54688/view">https://rusjbpc.ru/en/nauka/article/54688/view</self-uri>
   <abstract xml:lang="ru">
    <p>Исследовано изменение истинного спектра ослабления в накопительной культуре Arthrospira (Spirulina) platensis. В работе использовался двухлучевой спектрофотометр Lambda 365 Double Beam UV-Visible, который оснащён интегрирующей сферой (ИС). Особенность конструкции ИС заключается в том, что она собирает только прошедший свет и основную часть света, рассеянного в прямом направлении. Измерив спектры поглощения образца вблизи и на расстоянии 1 см от интегрирующей сферы, рассчитан спектр поглощения, скомпенсированный на рассеяние. При стандартном расположении кюветы (близко к ИС) оптическая плотность в диапазоне 750-800 нм не принимает нулевые значения. Оптическая плотность монотонно растёт с увеличением расстояния между кюветой и ИС. Это связано с селективным (у пигментов) и неселективным (у клеток микроводоросли) рассеяниями. Определён поправочный коэффициент ослабления света как среднее значение всех L в диапазоне 750-800 нм, который составил 1,61. На основании полученных истинных спектров поглощения показано, что в процессе роста накопительной культуры, при отсутствии лимитирования биогенными элементами, соотношения между пигментами не изменялись: хл а/кар = 1,36 и хл а/С-ФЦ = 1,06.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The change in the density spectrum of the batch culture Arthrospira (Spirulina) platensis was investigated. The two-beam spectrophotometer Lambda 365 Double Beam UV-Visible was used. The spectrophotometer was equipped with an integrating sphere (IS). The peculiarity of the IS design is that it collects only the past light and the main part of the light scattered in the straight direction. By measuring the absorption spectra of the sample near and at a distance of 1 cm from the integrating sphere, the absorption spectrum compensated for scattering is calculated. With the standard location of the cell (close to the IS), the optical density in the range of 750-800 nm was not take zero values. The optical density increased monotonously with increasing distance between the cell and the IS. This is due to selective (in pigments) and non-selective (in microalgae cells) scattering. The light attenuation coefficient is determined as the average value of all L in the range of 750-800 nm. In our case, this value was about 1.61. Based on the obtained true absorption spectra, it is shown that in the process of growth of the batch culture, the ratio between the pigments did not change. The ratios of chl a/car (1.36) and chl a/C-Phy (1.06) are considered.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>спирулина</kwd>
    <kwd>спектры ослабления</kwd>
    <kwd>интегрирующая сфера</kwd>
    <kwd>коэффициент ослабления света</kwd>
    <kwd>истинный спектр поглощения</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>spirulina</kwd>
    <kwd>attenuation spectra</kwd>
    <kwd>integrating sphere</kwd>
    <kwd>light attenuation coefficient</kwd>
    <kwd>true absorption spectrum</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена в рамках госзадания по теме НИР ФИЦ ИнБЮМ &quot; № гос. регистрации 121030300149-0.</funding-statement>
   </funding-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
 <back>
  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Lehmuskero A., Skogen Chauton M., Boström T. Light and photosynthetic microalgae: A review of cellular- and molecular-scale optical processes. Progress in Oceanography, 2018, vol. 168, pp. 43-56. doi: 10.1016/j.pocean.2018.09.002
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Lehmuskero A., Skogen Chauton M., Boström T. Light and photosynthetic microalgae: A review of cellular- and molecular-scale optical processes. Progress in Oceanography, 2018, vol. 168, pp. 43-56. doi: 10.1016/j.pocean.2018.09.002
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Беспрозванных В.Г., Первадчук В.П. Нелинейная оптика: учеб. Пособие. Пермь: Изд-во Перм. гос. техн. ун-та, 2011, 200 с.  @@Besprozvannykh V.G., Pervadchuk V.P. Nonlinear optics: textbook. Manual. Perm: Publishing house of the Perm State Technical University. un-ta, 2011, 200 p. (In Russ.)
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Besprozvannyh V.G., Pervadchuk V.P. Nelineynaya optika: ucheb. Posobie. Perm': Izd-vo Perm. gos. tehn. un-ta, 2011, 200 s.  @@Besprozvannykh V.G., Pervadchuk V.P. Nonlinear optics: textbook. Manual. Perm: Publishing house of the Perm State Technical University. un-ta, 2011, 200 p. (In Russ.)
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Холл Д., Рао К. Фотосинтез: Пер. с англ. М.: Мир, 1983, 134 с.  @@Hall D., Rao K. Photosynthesis: TRANS. from English. M.: Mir, 1983,134 p. (In Russ.)
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Holl D., Rao K. Fotosintez: Per. s angl. M.: Mir, 1983, 134 s.  @@Hall D., Rao K. Photosynthesis: TRANS. from English. M.: Mir, 1983,134 p. (In Russ.)
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Тренкеншу Р.П., Лелеков А.С. Моделирование роста микроводорослей. Белгород: ООО «КОНСТАНТА», 2017, 152 с.  @@Trenkenshu R.P., Lelekov A.S. Modeling of microalgae growth. Belgorod: CONSTANTA LLC, 2017, 152 p. (In Russ.)
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Trenkenshu R.P., Lelekov A.S. Modelirovanie rosta mikrovodorosley. Belgorod: OOO «KONSTANTA», 2017, 152 s.  @@Trenkenshu R.P., Lelekov A.S. Modeling of microalgae growth. Belgorod: CONSTANTA LLC, 2017, 152 p. (In Russ.)
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Ritchie R.J., Sma-Air S. Using integrating sphere spectrophotometry in unicellular algal research. J. Appl. Phycol., 2020, vol. 32, no. 5, pp. 2947-2958. doi: 10.1007/s10811-020-02232-y
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Ritchie R.J., Sma-Air S. Using integrating sphere spectrophotometry in unicellular algal research. J. Appl. Phycol., 2020, vol. 32, no. 5, pp. 2947-2958. doi: 10.1007/s10811-020-02232-y
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Merzlyak M.N., Naqvi, K.R. On recording the true absorption and scattering spectrum of a turbid sample: application to cell suspensions of the cyanobacterium anabaena variabilis. J. Photochem. Photobiol. B: Biology, 2000, vol. 58, pp. 123-129. doi: 10.1016/s1011-1344(00)00114-7
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Merzlyak M.N., Naqvi, K.R. On recording the true absorption and scattering spectrum of a turbid sample: application to cell suspensions of the cyanobacterium anabaena variabilis. J. Photochem. Photobiol. B: Biology, 2000, vol. 58, pp. 123-129. doi: 10.1016/s1011-1344(00)00114-7
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Davies-Colley R.J., Pridmore R.D., Hewitt J.E. Optical properties of some freshwater phytoplanktonic algae. Hydrobiologia, 1986, vol. 133, pp. 165-178. doi: 10.1007/BF00031865
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Davies-Colley R.J., Pridmore R.D., Hewitt J.E. Optical properties of some freshwater phytoplanktonic algae. Hydrobiologia, 1986, vol. 133, pp. 165-178. doi: 10.1007/BF00031865
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Мерзляк М.Н., Чивкунова О.Б., Маслова И.П., Накви Р.К., Соловченко А.Е., Клячко-Гурвич Г.Л. Спектры поглощения и рассеяния света клеточными суспензиями некоторых цианобактерий и микроводорослей. Физиология растений, 2008, т. 55, № 3, с. 464-470.  @@Merzlyak M.N., Chivkunova O.B., Maslova I.P., Nakvi R.K., Solovchenko A.E., Klyachko-Gurvich G.L. Spectra of light absorption and scattering by cellular suspensions of some cyanobacteria and microalgae. Plant Physiology, 2008, vol. 55, no. 3, pp. 464-470. (In Russ.)
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Merzlyak M.N., Chivkunova O.B., Maslova I.P., Nakvi R.K., Solovchenko A.E., Klyachko-Gurvich G.L. Spektry pogloscheniya i rasseyaniya sveta kletochnymi suspenziyami nekotoryh cianobakteriy i mikrovodorosley. Fiziologiya rasteniy, 2008, t. 55, № 3, s. 464-470.  @@Merzlyak M.N., Chivkunova O.B., Maslova I.P., Nakvi R.K., Solovchenko A.E., Klyachko-Gurvich G.L. Spectra of light absorption and scattering by cellular suspensions of some cyanobacteria and microalgae. Plant Physiology, 2008, vol. 55, no. 3, pp. 464-470. (In Russ.)
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">
            
              Zarrouk C. Contribution à l’étude d’une cyanophycée. Influence de divers facteurs physiques et chimiques sur la croissance et la photosynthèse de Spirulina maxima (Setch et Gardner) Geitler: Ph. D these, Paris, 1966, 114 p.
            
          </mixed-citation>
     <mixed-citation xml:lang="en">
            
              Zarrouk C. Contribution à l’étude d’une cyanophycée. Influence de divers facteurs physiques et chimiques sur la croissance et la photosynthèse de Spirulina maxima (Setch et Gardner) Geitler: Ph. D these, Paris, 1966, 114 p.
            
          </mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
