Cited by 96Phytochemicals and Antioxidant ActivitiesAgricultural and Biological ResearchMicroencapsulation and Drying Processes

Effects of Extraction Conditions on Bioactive Anthocyanin Content of Vaccinium Corymbosum in the Perspective of Food Applications

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Oancea, S., Stoia, M., Coman, D.·2012·Procedia Engineering

Abstract

Bioflavonoids, in particular anthocyanins have made the topic of many scientific research, mainly for two reasons: their beneficial effects on human health and applications as potential sources of natural food dyes. Natural extracts of these pigments may also find useful application for textiles dying, as an eco-friendly alternative to synthetic dyes. The aim of the present paper was to apply conventional extraction procedures in order to isolate an enriched crude extract of pigments from highbush blueberries (Vaccinium corymbosum L.). Water, hydroalcoholic solution and acidified alcoholic solvent were tested to extract anthocyanins by a discontinuous process. Also, temperatures of 4 °C, 30 °C and 50 °C at 2 hours time of extraction, and storage at –18 °C were tested. Concentration of monomeric anthocyanins was performed by the spectrophotometric pH differential method. Added hydrochloric acid in ethanol system was found more efficient than acetic acid regarding the extraction yield. The highest recovered anthocyanin content was obtained with 50% ethanol (148.51 mg 100 g-1 FW), while the lowest one was obtained with water (3.24 mg 100 g-1 FW). The applied elevated temperatures showed better extraction yield as diffusion rate and solubility of analytes in solvents are greater. Storage of fresh materials at freezing temperature showed an increase of the initial content of anthocyanins. Through the assessment of the influence of solvents and extraction temperatures, our results showed that anthocyanin extraction from Vaccinium corymbosum should be conducted under the following conditions: temperature of 50 °C, extraction time 2 hours, with solvent containing 50% ethanol, and protection against light.

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Crossref · 10.1016/j.proeng.2012.07.440

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  • Depending on the nature of the components, pH is a critical factor influencing the solubility of the compounds of interest.

    “Depending on the nature of the components, pH is a critical factor influencing the solubility of the compounds of interest [47].”

    From Optimized microwave-assisted azadirachtin extraction using response surface methodology (2024) · cites this paper as [47]

    The Results and discussions section says acids affect anthocyanin stability and that higher temperature increases analyte solubility. It does not say that pH influences solubility. Searches for pH and solubility found no passage establishing the claimed relationship. (LLM, conf=0.76)

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Research works printed but not linked: 2

  1. Garcia Viguera C, Zafrilla P, Artes F, Romero F, Abellan P, Tomas-Barberan FA. Colour and anthocyanin stability of red raspberry jam. J Sci Food Agric 1998;78:565-573.
  2. Markakis P, Livingston GE, Fellers CR. Quantitative aspects of strawberry-pigment degradation. Food Research 1957;22: 117-130.

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Authors
Oancea, S., Stoia, M., & Coman, D.
Affiliations
Lucian Blaga University of Sibiu (RO)
Corresponding author
Oancea, S.
Venue
Procedia Engineering
Publisher
Elsevier BV
Published
2012
Volume
42
Pages
489-495
ISSN
1877-7058 (ISSN-L)
OpenAlex
W1983607828
Cited by
94
References
10
Citations by year
2026: 7 · 2025: 9 · 2024: 7 · 2023: 12 · 2022: 5 · 2021: 15 · 2020: 12 · 2019: 9 · 2018: 10 · 2017: 4 · 2016: 3 · 2015: 1
FWCI
5.98
Type
conference paper
Language
en
Open access
Locations
Procedia Engineering (publishedVersion, cc-by-nc-nd)
Funders
  • Autoritatea Natională pentru Cercetare Stiintifică
  • Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii
Topics
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Agricultural and Biological Research
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Microencapsulation and Drying Processes
Keywords
anthocyanins, Vaccinium corymbosum, anthocyanin extraction, extraction conditions, ethanol extraction, extraction temperature, hydrochloric acid, natural food colorants, natural textile dyes, monomeric anthocyanins

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