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 <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">54689</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">Determination of culture Porphyridium Purpureum (Bory) Drew et ross density by light scattering by cell suspension</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Оценка плотности культуры Porphyridium Purpureum (Bory) Drew et Ross по рассеянию света суспензией клеток</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Железнова</surname>
       <given-names>С Н</given-names>
      </name>
      <name xml:lang="en">
       <surname>Zheleznova</surname>
       <given-names>S N</given-names>
      </name>
     </name-alternatives>
     <email>zheleznovasveta@yandex.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <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-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>Gevorgiz</surname>
       <given-names>R G</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <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-2">
    <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-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>
   <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>548</fpage>
   <lpage>553</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/54689/view">https://rusjbpc.ru/en/nauka/article/54689/view</self-uri>
   <abstract xml:lang="ru">
    <p>Экспериментально показано, что оптическая плотность ( D 750) суспензии Porphyridium purpureum и абсолютно сухой вес связаны линейной зависимостью. Методом наименьших квадратов рассчитан коэффициент связи оптической плотностью D 750 и сырой массы культуры, который равен 0,051 (R2=0,99). Учитывая долю воды в сырой массе P. purpureum (0,132±0.01, n=5), можно записать связь оптической плотности и сухой массы P. purpureum : D750 = 0,395 · Bсух , где Bсух - плотность культуры, выраженная в граммах сухой массы на литр. Данное выражение позволяет по оптической плотности P. purpureum определить сухую массу клеток в культуре. Отмечено, что оценка биомассы P. purpureum по оптической плотности культуры на КФК-3 зависит от положения кюветы в кюветодержателе и может изменять показания прибора в 1,9 раз, так как при использовании КФК-3 происходит измерение суммы величин оптической плотности и рассеяния света (ослабление). Таким образом, разработан экспресс метод оценки плотности биомассы P. purpureum по оптической плотности.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>It is shown that the optical density (D750) of a suspension of Porphyridium purpureum and absolutely dry weight are linearly related. Using the method of least squares, the coefficient of connection between the optical density D750 and the wet weight of the culture was calculated, which is 0.051.Knowing the proportion of water in the wet mass of P. purpureum (0.132), it is possible to determine the relationship between the optical density and dry weight of P. purpureum , where the coefficient of relationship between the optical density of culture and dry weight is 0.395. It is noted that the determination of P. purpureum biomass by optical density of the culture on KFK-3 depends on the position of the cuvette in the cuvette holder and can change the instrument values by 1.9 times. Since when using KFK-3, the sum of the values of optical density and light scattering (attenuation) is measured. Thus, an express method for assessing the density of P. purpureum biomass by optical density has been developed.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>методы измерения плотности</kwd>
    <kwd>оптическая плотность</kwd>
    <kwd>красные икроводоросли</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>methods for measuring density</kwd>
    <kwd>optical density</kwd>
    <kwd>red microalgae</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена в рамках госзадания по теме НИР ФИЦ ИнБЮМ № 121030300149-0</funding-statement>
   </funding-group>
  </article-meta>
 </front>
 <body>
  <p></p>
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