Cited by 23Protein Hydrolysis and Bioactive PeptidesSeaweed-derived Bioactive CompoundsEnzyme Production and Characterization

Production and Purification of Novel Hypocholesterolemic Peptides from Lactic Fermented Spirulina platensis through High Hydrostatic Pressure-Assisted Protease Hydrolysis

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Chen, Guan-Wen, Yang, Meng-Hsuan·2021·Catalysts

Abstract

This research focuses on the proteolytic capacity of Spirulina platensis and their hypocholesterolemic activity via the 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase (HMGR) inhibitory activity. To select suitable proteases for releasing peptides with high HMGR-inhibiting activity from S. platensis, eight commonly used commercial proteases were used in protease hydrolysis under high hydrostatic pressure (HHP, 100 MPa or 0.1 MPa) at 50 °C for 24 h. The Peptidase R group had the highest inhibitory capacity (67%). First, S. platensis was fermented with seven mixed lactic acid bacteria for 5 h at 42 °C. This was followed by the addition of Peptidase R under high hydrostatic pressure (100 MPa at 50 °C) for 0–6 h of enzymatic hydrolysis (HHP-FH-PR6) to determine the hydrolytic capacity of S. platensis protein. As the hydrolysis time extended to 6 h, the peptide content increased from 96.8 mg/mL to 339.8 mg/mL, and the free amino acid content increased from 24 mg/mL to 115.2 mg/mL, while inhibition of HMGR increased from 67.0% to 78.4%. In an experimental simulation of in vitro gastrointestinal digestion, the IC50 of HHP-FH-PR6G on HMGR was 3.5 μg peptide/mL. Peptides with inhibitory activity on HMGR were purified, and their sequences were identified as Arg-Cys-Asp and Ser-Asn-Val (IC50: 6.9 and 20.1 μM, respectively).

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Crossref · 10.3390/catal11080873

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  • Preclinical trials on Spirulina/Limnospira platensis protein hydrolysate (SPPH) showed potential anti-obesity effects through modulation of the PPAR-γ, adipocytokine, AMPK, and MAPK signaling pathways.

    “Preclinical trials on Spirulina/Limnospira platensis protein hydrolysate (SPPH) showed potential anti-obesity effects through modulation of the PPAR-γ, adipocytokine, AMPK, and MAPK signaling pathways.”

    From Navigating the potential of algal peptides: health effects, market applications, and scientific challenges (2026) · cites this paper as [116]

    The Abstract and Conclusions report in vitro inhibition of HMG-CoA reductase by Spirulina protein hydrolysate peptides, not preclinical anti-obesity effects. Searches for anti-obesity trials and the PPAR-γ, adipocytokine, AMPK, and MAPK pathways found no passage addressing the claimed effects or mechanisms. (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • Limnospira platensis-derived peptides CANPHELPNK and NPVWKRK (3-5 kDa fraction) at 600 μg/mL inhibited pancreatic lipase by 72.7-88.1%.

    “CANPHELPNK and NPVWKRK (3-5 kDa fraction) at 600 µg/mL inhibited pancreatic lipase by 72.7–88.1%”

    From Navigating the potential of algal peptides: health effects, market applications, and scientific challenges (2026) · cites this paper as [116]

    The Conclusions (Table 5; page unavailable) identify Arg-Cys-Asp and Ser-Asn-Val and report inhibition of HMG-CoA reductase, not pancreatic lipase. Searches for CANPHELPNK, NPVWKRK, the 3–5 kDa fraction, and the claimed dose and inhibition range found no passage addressing those results. (LLM, conf=0.76)

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Cited by

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Authors
Chen, G.-W., & Yang, M.-H.
Affiliations
  • Department of Food Science, National Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202, Taiwan
  • National Taiwan Ocean University (TW)
Venue
Catalysts
Publisher
MDPI AG
Published
2021-07-21
Volume
11
Issue
8
Pages
873
ISSN
2073-4344 (ISSN-L)
OpenAlex
W3207596830
Cited by
23
References
45
Citations by year
2026: 4 · 2025: 5 · 2024: 5 · 2023: 3 · 2022: 5
FWCI
1.02
Type
journal article
Language
en
Open access
Locations
  • Catalysts (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
the National Science Council, Taiwan ([MOST 107-2218-E-019-002] and [MOST 108-2221-E-019-040-MY3])
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Hydrolysis and Bioactive Peptides
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Seaweed-derived Bioactive Compounds
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Enzyme Production and Characterization
Keywords
Spirulina platensis, high hydrostatic pressure, protease hydrolysis, lactic acid bacteria fermentation, peptide purification, in vitro digestion, free amino acids

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