Cited by 62Algal biology and biofuel productionSeaweed-derived Bioactive CompoundsMicrobial Metabolism and Applications

Effect of nutrient depletion on β-carotene and glycerol accumulation in two strains of Dunaliella sp.

Phadwal, Kanchan, Singh, P.K·2003·Bioresource Technology

Abstract

The response of two strains of Dunaliella, a beta-carotene accumulating halotolerant alga, was evaluated under sulphate, nitrate and phosphate limitation. All these factors decreased the growth rate and chlorophyll content but, increased the beta-carotene content of the two isolates of Dunaliella, D1, obtained from GTCC and D2 an indigenous strain isolated from Sambhar salt lake, India. Both the strains exhibited accumulation of beta-carotene and glycerol under the different nutrient limiting conditions. A maximum accumulation of 3.99 pg/cell of beta-carotene was observed under phosphate depletion. However, nutrient depletion did not significantly affect the glycerol accumulation in these cells. D2, the indigenous isolate, was found to be a better accumulator of beta-carotene than D1.

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Authors
Phadwal, K., & Singh, P. K.
Affiliations
Indian Agricultural Research Institute (IN)
Corresponding author
Phadwal, Kanchan
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2003-10
Volume
90
Issue
1
Pages
55-58
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2017148783
Cited by
62
References
14
Citations by year
2026: 1 · 2024: 3 · 2023: 3 · 2022: 1 · 2021: 2 · 2020: 5 · 2019: 3 · 2018: 5 · 2017: 3 · 2016: 4 · 2015: 3 · 2014: 3 · 2013: 4 · 2012: 3
FWCI
1.14
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Council of Scientific and Industrial Research, India
  • Indian Agricultural Research Institute
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Seaweed-derived Bioactive Compounds
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Microbial Metabolism and Applications
Keywords
Dunaliella, β-carotene accumulation, glycerol accumulation, nutrient limitation, sulfate limitation, nitrate limitation, phosphate limitation, halotolerant algae, chlorophyll content, algal growth rate, Sambhar Salt Lake, carotenoid biosynthesis
MeSH terms
Chlorophyta, Cells, Cultured, Chlorophyll, Culture Media, Glycerol, Nitrates, Phosphates, Species Specificity, Sulfates, beta Carotene

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