A Comprehensive review of raisins and raisin components and their relationship to human health

Schuster, M.J.; Wang, Xinyue; Hawkins, Tim E.; Painter, James

doi:10.4163/jnh.2017.50.3.203

Cited by 18 publications

(15 citation statements)

References 71 publications

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“…The health benefits of grape seed consumption are thought to be mainly due to the bioactivities of its polyphenols. Therefore, grape‐derived extracts are natural sources of polyphenols, with their antioxidative, anti‐acetylcholinesterase, anti‐amyloidoid, anti‐inflammatory and antimicrobial activities, which can drive antitumor, cardiovascular disease and healthy brain aging [12,16–19] . The drying process to make raisins is known to preserve and concentrate the antioxidant capacity of fresh grapes [4,5] .…”

Section: Introductionmentioning

confidence: 99%

Phytochemical Contents of Different Parts of the Seeded Raisins from the South‐East Anatolia: Enzyme Inhibitory Potential of Pulp Extracts

Karataş

Yener

et al. 2022

Chemistry & Biodiversity

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In this study, some phytochemical properties of six seeded raisin species that are mainly cultivated in Southeastern Anatolia were investigated. Additionally, some physical and quality characteristics, phenolic contents (by LC‐MS/MS; Liquid Chromatography Tandem Mass/Mass Spectrometer System), anticholinesterase, and antioxidant capacities (DPPH; 2,2‐diphenyl‐1‐picrylhydrazyl free‐radical scavenging, ABTS; 2,2‐azinobis(3‐ethylbenzothiazoline‐6‐sulphonic acid cation‐radical scavenging activity and CUPRAC; cupric reducing antioxidant capacity) of the cultivars were investigated on ground raisins. In all three methods, the antioxidant activity values of seed extracts were determined to be higher than those of leaf and pulp extracts. Remarkably, the seed extract of Banazı Siyahı showed the highest antioxidant activity in ABTS (IC50: 4.35±0.02 μg/mL), DPPH (IC50: 10.78±0.78 μg/mL), and CUPRAC (A0.5: 9.33±0.45 μg/mL) methods. Additionally, the ethanol extracts of all pulp samples showed higher anticholinesterase activity against acetyl‐(AChE) and butyrylcholinesterase (BChE) enzymes than galantamine. According to the LC‐MS/MS results, catechin (21.362 mg analyte/g extract) and epicatechin (44.667 mg analyte/g extract) found to be quite rich in Kerküş seed extract and isoquercitrin (116.873 mg analyte/g extract) and astragalin (31.915 mg analyte/g extract) detected to be quite rich in Banazı Siyahı leaf extract. Considering the mineral content of the varieties and the soil samples they grow in, all of the grape varieties analyzed in the study was found to be rich. Based on these findings, it might be suggested that Banazı Siyahı and Kerküş varieties have potential to be utilized in pharmaceutical and food industries, due to their contents of catechins, isoquercitrin and astragalin.

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Section: Introductionmentioning

confidence: 99%

Phytochemical Contents of Different Parts of the Seeded Raisins from the South‐East Anatolia: Enzyme Inhibitory Potential of Pulp Extracts

Karataş

Yener

et al. 2022

Chemistry & Biodiversity

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“…Besides these, currants contain minerals, vitamins (ascorbic acid, pyridoxine, riboflavin, thiamin), aryl, and phenolic compounds, fibers, tartaric acid, and so forth. (Schuster et al., 2017).…”

Section: Resultsmentioning

confidence: 99%

Nontargeted ¹H NMR fingerprinting and multivariate statistical analysis for traceability of Greek PDO Vostizza currants

Dimitrakopoulou

Matzarapi

Chasapi

et al. 2021

Journal of Food Science

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In this study, non‐targeted 1H NMR fingerprinting was used in combination with multivariate statistical analyses for the classification of Greek currants based on their geographical origins (Aeghion, Nemea, Kalamata, Zante, and Amaliada). As classification techniques, Principal Component Analysis (PCA) and Partial Least Squares Discriminant Analysis (PLS‐DA) were carried out. To elucidate different components according to PDO (Protected Designation of Origin), products from Aeghion (Vostizza) were statistically compared with each one of the four other regions. PLS‐DA plots ensure that currants from Kalamata, Nemea, Zante, and Amaliada are well classified with respect to the PDO currants, according to differences observed in metabolites. Results suggest that composition differences in carbohydrates, amino, and organic acids of currants are sufficient to discriminate them in correlation to their geographical origin. In conclusion, currants metabolites which mostly contribute to classification performance of such discriminant analysis model present a suitable alternative technique for currants traceability. The study results contribute information to the currants’ metabolite fingerprinting by NMR spectroscopy and their geographical origin. Practical Application This study presents an analytical approach for a high nutritional value Greek PDO product, Vostizza currant. A further research and implementation of this method in food industry, can be the key to food fraud incidents. Thus, application of this work opens up posibilities to “farm to table” mission.

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“…Raisins are the dried form of grape, and black grape, in particular, received interest from many researchers as a dietary supplement to promote healthy body status [14,55]. Raisins are high in bioactive phenolic compounds such as flavonoids and phenolic acids [56].…”

Section: Discussionmentioning

confidence: 99%

Black Raisins Improved Experimentally Induced Iron Deficiency Anemia. Biochemical and Histological Evidence

Zaid

Abduljawad

Aljadani

et al. 2021

JPRI

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Iron deficiency anemia is a challenging clinical problem with a profound impact on general health. Administration of iron-containing preparations were reported to be associated with many side effects. The current study aimed to evaluate black raisins’ therapeutic role against experimentally induced iron deficiency anemia in rats. Forty female rats were divided into 4 groups (n=10); control, anemia, anemia + iron, and anemia + raisins. Anemia was induced by bleeding and an iron-deficient diet for 4 weeks. Anemic rats were treated with ferric sulfate (200 mg/kg) or raisin extract (375 mg/kg) daily for 12 weeks. Complete blood count (CBC), blood films, body weight, splenic weight, and index were assessed. The spleens were processed and stained by hematoxylin and eosin (H & E) and immunohistochemically stained for CD3+ and CD68. Raisins contain a considerable amount of iron, vitamin B, phenolics, and flavonoid antioxidants. In raisins treated rats, CBC parameters displayed a significant increase compared to the anemic rats. Most of the RBCs in blood films showed normal shape, size, and central pallor. The spleen of raisins and iron-treated rats showed a marked increase in the area of white pulp. Their spleens also showed a significant increase in the CD3+ PALS area compared to anemic rats. Iron and raisins significantly decreased splenic CD68 macrophages. Consumption of black raisins could be considered an excellent natural source for flavonoids and iron to be used as an adjuvant supplement to iron for anemic patients with increased splenic T lymphocytes.

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A Comprehensive review of raisins and raisin components and their relationship to human health

Cited by 18 publications

References 71 publications

Phytochemical Contents of Different Parts of the Seeded Raisins from the South‐East Anatolia: Enzyme Inhibitory Potential of Pulp Extracts

Phytochemical Contents of Different Parts of the Seeded Raisins from the South‐East Anatolia: Enzyme Inhibitory Potential of Pulp Extracts

Nontargeted ¹H NMR fingerprinting and multivariate statistical analysis for traceability of Greek PDO Vostizza currants

Black Raisins Improved Experimentally Induced Iron Deficiency Anemia. Biochemical and Histological Evidence

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A Comprehensive review of raisins and raisin components and their relationship to human health

Cited by 18 publications

References 71 publications

Phytochemical Contents of Different Parts of the Seeded Raisins from the South‐East Anatolia: Enzyme Inhibitory Potential of Pulp Extracts

Phytochemical Contents of Different Parts of the Seeded Raisins from the South‐East Anatolia: Enzyme Inhibitory Potential of Pulp Extracts

Nontargeted 1H NMR fingerprinting and multivariate statistical analysis for traceability of Greek PDO Vostizza currants

Black Raisins Improved Experimentally Induced Iron Deficiency Anemia. Biochemical and Histological Evidence

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Resources

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Nontargeted ¹H NMR fingerprinting and multivariate statistical analysis for traceability of Greek PDO Vostizza currants