Cited by 711Bioactive Compounds in PlantsPhytochemicals and Antioxidant ActivitiesAgricultural and Biological Research

Phenolic composition, antioxidant potential and health benefits of citrus peel

Singh, Balwinder, Singh, Jatinder Pal, Kaur, Amritpal, Singh, Narpinder·2020·Food Research International

Abstract

Citrus peel (CP) forms around 40-50% of the total fruit mass but is generally thought to be a waste. However, it is a substantial source of naturally occurring health enhancing compounds, particularly phenolic compounds and carotenoids. Phenolic compounds in CP mainly comprise phenolic acids (primarily caffeic, p-coumaric, ferulic and sinapic acid), flavanones (generally naringin and hesperidin) and polymethoxylated flavones (notably nobiletin and tangeretin). It has also been noted that CP's contain more amounts of these compounds than corresponding edible parts of the fruits. Phenolic compounds present in CP act as antioxidants (by either donation of protons or electrons) and protect cells against free radical damage as well as help in reducing the risk of many chronic diseases. Owing to the more abundance of polyphenols in CP's, their antioxidant activity is also higher than other edible fruit parts. Therefore, peels from citrus fruits can be used as sources of functional compounds and preservatives for the development of newer food products, that are not only safe but also have health-promoting activities. The present review provides in-depth knowledge about the phenolic composition, antioxidant potential and health benefits of CP.

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Crossref · 10.1016/j.foodres.2020.109114

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  • Food industry by-products (fruit, skins, seeds, and membrane residues) are rich sources of bioactive compounds such as dietary fiber, minerals, organic acids, vitamins, phenolic acids, flavonoids, terpenes, and carotenoids.

    “These fractions are rich sources of many bioactive compounds, such as dietary fiber (pectin, cellulose, hemicellulose, and lignin), minerals (potassium, calcium, magnesium, and selenium), organic acids (citric, oxalic, and malic acids), vitamins (vitamin C, thiamine, riboflavin, and niacin), phenolic acids (chlorogenic, ferulic, and sinapic acids), flavonoids (hesperidin, narirutin, didymin, hespe”

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Authors
Singh, B., Singh, J. P., Kaur, A., & Singh, N.
Affiliations
Guru Nanak Dev University (IN)
Corresponding author
Kaur, Amritpal
Venue
Food Research International
Publisher
Elsevier BV
Published
2020-06
Volume
132
Pages
109114
ISSN
0963-9969 (ISSN-L)
OpenAlex
W3007656257
Cited by
711
References
165
Citations by year
2026: 77 · 2025: 129 · 2024: 160 · 2023: 124 · 2022: 120 · 2021: 81 · 2020: 20
FWCI
7.35
Type
journal article
Language
en
Open access
closed
Locations
  • Food Research International (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Science and Engineering Research Board
  • University Grants Commission
  • Council of Scientific and Industrial Research, India (38(1419)/16/EMR-II)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Bioactive Compounds in Plants
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Agricultural and Biological Research
Keywords
citrus peel, phenolic compounds, antioxidant activity, phenolic acids, flavanones, naringin, hesperidin, nobiletin, tangeretin, carotenoids, free radical scavenging, functional food ingredients, food preservatives, health benefits, fruit waste valorization
MeSH terms
Antioxidants, Biological Availability, Citrus, Coumaric Acids, Fruit, Hesperidin, Phenols, Plant Extracts, Flavanones, Flavones, Polyphenols, Hydroxybenzoates

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