The introduction of new crops and the development of the use of wild plants creates the potential to diversify global food production and better enable local adaptation to the diverse and changing environments that humans inhabit. Barberry is widely distributed worldwide and is recognized as a valuable plant. In this review, we summarize the functional compounds and nutraceutical features of barberry species. Barberry plants have fruits, flowers, leaves, stems and roots. All of these parts contain very important compounds, such as anthocyanins, alkaloids, flavonoids, phenolic compounds, vitamins and minerals, etc., which have been used for many years in traditional medicine. These compounds have a strong impact on human health and can be used as a painkiller, as well as for the relief of fever, diarrhea and vomiting. They are also useful for curing liver and vascular problems and preventing many diseases. One of the most important functional compounds in the barberry plant is berberine, which exists in its different parts. Studies have shown that berberine in barberry reduces cholesterol and blood glucose. It can help to prevent Alzheimer's and neoplastic diseases. Furthermore, it has antimicrobial, antifungal and antioxidant properties. According to the investigations, barberry plant derivations can be considered as useful additives and functional compounds in various industries, especially in the food industry. Ascorbic acid 149.2 mg g −1 Antioxidant activity 71.15% J Sci Food Agric 2019; 99: 5255-5269 CONCLUSIONS Barberry is a native plant in the moderate and semitropical regions, and has different types, including seeded and seedless. Previous J Sci Food Agric 2019; 99: 5255-5269
BACKGROUND: Barberry is a valuable plant, which is useful in the treatment of different diseases. There are valuable compounds in different parts of barberry that are pruned per year and discarded as waste. OBJECTIVE: In this study, the amount of berberine, phenolic compounds and antioxidant activity of barberry fruits, leaves, and stems of different barberry species (B.integerrima and B.thunbergii) were investigated. METHODS: Central composite design of response surface methodology (RSM) were used in this study to investigate the extraction variables (time: 2–24 h, temperature: 24–70°C and ethanol concentration: 50–90%) in the extraction of berberine from the stem of B.integrrima. The responses used as criteria were the amount of berberine, scavenging radical DPPH, and polyphenol. Also, pulsed electric field-assisted (PEF) was applied as a pretreatment (Pulse strengths of 250, 1000 and 1250 Vcm–1; Pulse numbers (n) of 50 and 100; frequency (f) of 1 Hz) and then the extraction was conducted in optimum condition. PEF increased significantly the amount of berberine. RESULTS: The stem of B.integrrima had the most amounts of antioxidant activity and berberine content, and it was selected for more investigation. The optimum condition in the maceration method was: 90% of ethanol, 70°C, and 3.36 h (141.6 min). According to the result of PEF method, the best condition for extraction of berberine from barberry stems was 1000 Vcm–1 and n = 100. CONCLUSIONS: The results demonstrated that the extract of B.integrrima stem is a good source of berberine, antioxidant, and has the potential to be applied in various industries.
Barberry has valuable compounds with high functional properties such as berberine. In this study, the QuEChERS method was applied for the extraction of berberine, phenolic, and antioxidant compounds of B.integerrima stem and compared with the maceration method. Also, the standard QuEChERS was modified to improve the extraction efficiency and application of this method in the food industries. The majority of the changes in the modified QuEChERS methods were the type of solvent, and removing salts and sorbents in the procedure. The average recovery of berberine was more efficient in maceration in comparison with the QuEChERS method. However, the ethanolic QuEChERS method had a positive effect on the extraction of phenolic compounds in comparison with the other applied methods. The modified QuEChERS method had a better yield to extract the phenolic compounds than the extraction of berberine compounds.
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