Cited by 97Moringa oleifera research and applicationsEnzyme Production and CharacterizationProteins in Food Systems

Caseinolytic and milk-clotting activities from Moringa oleifera flowers

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Pontual, Emmanuel V., Carvalho, Belany E.A., Bezerra, Ranilson S., Coelho, Luana C.B.B., Napoleão, Thiago H., Paiva, Patrícia M.G.·2012·Food Chemistry

Abstract

This work reports the detection and characterization of caseinolytic and milk-clotting activities from Moringa oleifera flowers. Proteins extracted from flowers were precipitated with 60% ammonium sulphate. Caseinolytic activity of the precipitated protein fraction (PP) was assessed using azocasein, as well as α(s)-, β- and κ-caseins as substrates. Milk-clotting activity was analysed using skim milk. The effects of heating (30-100°C) and pH (3.0-11.0) on enzyme activities were determined. Highest caseinolytic activity on azocasein was detected after previous incubation of PP at pH 4.0 and after heating at 50°C. Milk-clotting activity, detected only in the presence of CaCl(2), was highest at incubation of PP at pH 3.0 and remained stable up to 50°C. The pre-treatment of milk at 70°C resulted in highest clotting activity. Enzyme assays in presence of protease inhibitors indicated the presence of aspartic, cysteine, serine and metallo proteases. Aspartic proteases appear to be the main enzymes involved in milk-clotting activity. PP promoted extensive cleavage of κ-casein and low level of α(s)- and β-caseins hydrolysis. The milk-clotting activity indicates the application of M. oleifera flowers in dairy industry.

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Crossref · 10.1016/j.foodchem.2012.06.087

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  1. [14]14. Dalgleish, D. G. (1990). Aspects of stability in milk and milk products. In R. D. Bee, P. Richmond, & J. Mingins (Eds.), Food Colloids (pp. 295-305). Cambridge: Royal Society of Chemistry.
  2. [24]24. Ishak, R., Idris, Y. M. A., Mustafa, S., Sipat, A., Muhammad, S. K. S., & Manap, M. Y. A. (2006). Factors affecting milk coagulating activities of Keisinai (Streblus asper) extract. International Journal of Dairy Science, 1, 1131-1135.

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Authors
Pontual, E. V., Carvalho, B. E. A., Bezerra, R. S., Coelho, L. C. B. B., Napoleão, T. H., & Paiva, P. M. G.
Affiliations
Universidade Federal de Pernambuco (BR)
Corresponding author
Paiva, Patrícia M.G.
Venue
Food Chemistry
Publisher
Elsevier BV
Published
2012-12
Volume
135
Issue
3
Pages
1848-1854
ISSN
0308-8146 (ISSN-L)
OpenAlex
W2081770308
Cited by
97
References
53
Citations by year
2026: 1 · 2025: 4 · 2024: 6 · 2023: 12 · 2022: 6 · 2021: 8 · 2020: 11 · 2019: 10 · 2018: 10 · 2017: 12 · 2016: 7 · 2015: 5 · 2014: 1 · 2013: 3 · 2012: 1
FWCI
3.63
Type
journal article
Language
en
Open access
Locations
  • Food Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Moringa oleifera research and applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Enzyme Production and Characterization
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Proteins in Food Systems
Keywords
Moringa oleifera, caseinolytic activity, milk-clotting activity, plant proteases, aspartic protease, κ-casein hydrolysis, protease inhibitors, pH and temperature stability
MeSH terms
Animals, Caseins, Cattle, Hydrogen-Ion Concentration, Hydrolysis, Milk, Plant Extracts, Moringa oleifera, Flowers

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