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The Effect of Liquid Organic Fertilizer "Bio Ferti" Application on the Growth Rate of Spirulina platensis by Using Haldane Model.

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Title: The Effect of Liquid Organic Fertilizer "Bio Ferti" Application on the Growth Rate of Spirulina platensis by Using Haldane Model.
Authors: Ginting, M. Iqbal Maulana, Suyono, Eko Agus, Koerniawan, Mochammad Donny, Suwanti, Lucia Tri, Siregar, Ulfah Juniarti, Budiman, Arief
Source: Journal of Tropical Biodiversity & Biotechnology; Aug2022, Vol. 7 Issue 2, p1-16, 16p
Subject Terms: FERTILIZERS, SPIRULINA platensis, SOIL microbiology, RAIN forests, MICROALGAE
Abstract: This experimental research was performed to observe the influence of an agricultural liquid organic fertilizer called Bio Ferti on the growth and biomass of Spirulina platensis, aiming at replacing inorganic fertilizer with the liquid organic one. The cultivation of the microalgae was conducted over seven days at Nogotirto Algae Park. The liquid organic fertilizer, namely Bio Ferti, was obtained from the Faculty of Biology, Universitas Gadjah Mada, and prepared to have doses of 2, 4, 6, 8, and 10 mL. For comparison, an inorganic fertilizer with the same doses was also prepared. The variables to be observed were cell density, dry cell weight, and growth kinetics. The culture medium conditions observed were temperature, pH, and salinity (the optimum salinity was 20 ppt). The growth kinetic analysis was performed mathematically using numerical simulations using the Contois and the Haldane models. This research's results showed that Bio Ferti affected the growth rate of Spirulina platensis. With a dose of 2 mL, it became the optimum medium which produced the highest density and dry weight of 1.78x106 cells/mL and 160 mg/mL, respectively. Meanwhile, the inorganic fertilizer with a dose of 10 mL produced the highest density and dry weight of 2,13x105 and 80 mg/mL, respectively. The temperature ranged from 28 to 31°C, while the pH ranged from 8.01 to 9.02 for each medium. The suitable model to describe the growth kinetics of Spirulina platensis was the Haldane model. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Tropical Biodiversity & Biotechnology is the property of Journal of Tropical Biodiversity & Biotechnology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: The Effect of Liquid Organic Fertilizer "Bio Ferti" Application on the Growth Rate of Spirulina platensis by Using Haldane Model.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Ginting%2C+M%2E+Iqbal+Maulana%22">Ginting, M. Iqbal Maulana</searchLink><br /><searchLink fieldCode="AR" term="%22Suyono%2C+Eko+Agus%22">Suyono, Eko Agus</searchLink><br /><searchLink fieldCode="AR" term="%22Koerniawan%2C+Mochammad+Donny%22">Koerniawan, Mochammad Donny</searchLink><br /><searchLink fieldCode="AR" term="%22Suwanti%2C+Lucia+Tri%22">Suwanti, Lucia Tri</searchLink><br /><searchLink fieldCode="AR" term="%22Siregar%2C+Ulfah+Juniarti%22">Siregar, Ulfah Juniarti</searchLink><br /><searchLink fieldCode="AR" term="%22Budiman%2C+Arief%22">Budiman, Arief</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: Journal of Tropical Biodiversity & Biotechnology; Aug2022, Vol. 7 Issue 2, p1-16, 16p
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22FERTILIZERS%22">FERTILIZERS</searchLink><br /><searchLink fieldCode="DE" term="%22SPIRULINA+platensis%22">SPIRULINA platensis</searchLink><br /><searchLink fieldCode="DE" term="%22SOIL+microbiology%22">SOIL microbiology</searchLink><br /><searchLink fieldCode="DE" term="%22RAIN+forests%22">RAIN forests</searchLink><br /><searchLink fieldCode="DE" term="%22MICROALGAE%22">MICROALGAE</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This experimental research was performed to observe the influence of an agricultural liquid organic fertilizer called Bio Ferti on the growth and biomass of Spirulina platensis, aiming at replacing inorganic fertilizer with the liquid organic one. The cultivation of the microalgae was conducted over seven days at Nogotirto Algae Park. The liquid organic fertilizer, namely Bio Ferti, was obtained from the Faculty of Biology, Universitas Gadjah Mada, and prepared to have doses of 2, 4, 6, 8, and 10 mL. For comparison, an inorganic fertilizer with the same doses was also prepared. The variables to be observed were cell density, dry cell weight, and growth kinetics. The culture medium conditions observed were temperature, pH, and salinity (the optimum salinity was 20 ppt). The growth kinetic analysis was performed mathematically using numerical simulations using the Contois and the Haldane models. This research's results showed that Bio Ferti affected the growth rate of Spirulina platensis. With a dose of 2 mL, it became the optimum medium which produced the highest density and dry weight of 1.78x106 cells/mL and 160 mg/mL, respectively. Meanwhile, the inorganic fertilizer with a dose of 10 mL produced the highest density and dry weight of 2,13x105 and 80 mg/mL, respectively. The temperature ranged from 28 to 31°C, while the pH ranged from 8.01 to 9.02 for each medium. The suitable model to describe the growth kinetics of Spirulina platensis was the Haldane model. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Tropical Biodiversity & Biotechnology is the property of Journal of Tropical Biodiversity & Biotechnology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.22146/jtbb.68944
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      – Code: eng
        Text: English
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        PageCount: 16
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    Subjects:
      – SubjectFull: FERTILIZERS
        Type: general
      – SubjectFull: SPIRULINA platensis
        Type: general
      – SubjectFull: SOIL microbiology
        Type: general
      – SubjectFull: RAIN forests
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      – SubjectFull: MICROALGAE
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      – TitleFull: The Effect of Liquid Organic Fertilizer "Bio Ferti" Application on the Growth Rate of Spirulina platensis by Using Haldane Model.
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            NameFull: Ginting, M. Iqbal Maulana
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            NameFull: Suyono, Eko Agus
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            NameFull: Koerniawan, Mochammad Donny
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            NameFull: Suwanti, Lucia Tri
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            NameFull: Siregar, Ulfah Juniarti
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            – D: 01
              M: 08
              Text: Aug2022
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              Y: 2022
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