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[Sour cherry juice nutritional profile].
N N Ivanova1, L M Khomich1, I B Perova2
1Non-Commercial Organization «Russian Union of Juice Producers» (RSPS), Moscow.
Voprosy Pitaniia
|December 21, 2018
Summary
Sour cherry juice is rich in beneficial organic acids, polyphenols like anthocyanins, and essential minerals such as potassium and magnesium. This nutrient profile makes sour cherry nectar a valuable dietary component.
Area of Science:
- Food Science
- Nutritional Biochemistry
- Agricultural Science
Background:
- Sour cherry (Prunus cerasus) is a significant crop, with major production in Russia, Turkey, and Poland.
- Sour cherry juice is popular but lacks comprehensive data on its natural compound content, especially in industrially produced products.
- Its composition is comparable to berries, notable for low sucrose, high organic acids, and rich mineral and polyphenol content.
Purpose of the Study:
- To clarify the content of natural substances in industrially produced sour cherry juice.
- To provide detailed information on organic acids, polyphenols (flavonoids, anthocyanins, phenolic acids), and minerals in sour cherry nectar.
- To assess the contribution of a serving of sour cherry nectar to daily nutrient intake.
Main Methods:
- Analysis of organic acids, focusing on L-malic acid quantification.
- Quantification of polyphenolic compounds, including total flavonoids, anthocyanins (cyanidin-3-O-glucosylrutinoside), and phenolic acids (chlorogenic acids, 3-coumaroylquinic acid).
- Determination of mineral content (potassium, magnesium, copper, manganese).
Main Results:
- Sour cherry juice is primarily composed of L-malic acid (1.2-2.7 g/100 ml).
- Polyphenolic compounds are significant, with anthocyanins (70% cyanidin-3-O-glucosylrutinoside) and hydroxycinnamic acids (chlorogenic acids) being predominant.
- A portion of sour cherry nectar provides substantial daily intake percentages for flavonoids (15%), anthocyanins (20%), hydroxycinnamic acids (exceeding daily needs), copper and manganese (10%), potassium (6%), and magnesium (3%).
Conclusions:
- Sour cherry juice is a rich source of organic acids, particularly L-malic acid.
- The juice is an excellent source of bioactive polyphenols, including anthocyanins and hydroxycinnamic acids, contributing significantly to daily intake.
- Sour cherry nectar is a valuable source of essential minerals like potassium, magnesium, copper, and manganese.
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