Datuashvili Lana, Vanidze Maia, Japaridze Indira, Surmanidze Nona, Kartsivadze Inga, Davitadze Ruslan, Kalandia Aleko
Department of Chemistry, Faculty of Natural Sciences and Health Care Batumi Shota Rustaveli State University (BSU) Batumi Georgia.
Food Sci Nutr. 2025 Jul 14;13(7):e70507. doi: 10.1002/fsn3.70507. eCollection 2025 Jul.
Sea buckthorn ( L.), a wild berry abundant in Georgia, is a rich source of bioactive compounds, including antioxidants, fatty acids, and phenolic compounds, with significant potential for applications in food, nutraceutical, and cosmetic industries. Despite its traditional uses, the physicochemical properties and valorization potential of Georgian sea buckthorn remain underexplored. This study aimed to analyze the chemical composition of sea buckthorn berries from three distinct regions of Georgia (Adjara, Samtskhe-Javakheti, and Imereti) and develop innovative, environmentally friendly extraction technologies to maximize the recovery of valuable compounds. Using advanced techniques such as ultrasound-assisted extraction (UAE) and supercritical water extraction (SWE), alongside traditional methods like maceration and Soxhlet extraction, the study identified and quantified 18 bioactive compounds, including organic acids (malic and citric acid), phenolic acids (quinic acid), and flavonoids (e.g., gallocatechin, catechin, and isorhamnetin derivatives). The lipid fraction, predominantly composed of C18 fatty acids (57.4%-76.9%), was rich in linoleic acid (29.4%-50.0%), with extraction yields varying by method. Total phenolic content ranged from 19.90 to 34.94 mg/g dry weight, with higher levels in Samtskhe-Javakheti and Imereti samples. The highest carotenoid content (3.363 mg/g dry weight) was observed in Samtskhe-Javakheti berries. UAE with 75% ethanol optimized carotenoid (1.684 mg/g) and phenolic (8.213 mg/g) recovery, while SWE achieved 86% lipid yield and high phenolic content (92.25 mg/g) in just 7 min. Carotenoid-enriched sunflower oil exhibited 3.5-fold higher antioxidant activity than control oil, demonstrating enhanced oxidative stability. The study highlights the efficacy of green extraction methods in valorizing sea buckthorn by-products, offering sustainable solutions for producing high-value nutraceuticals and functional foods. These findings underscore the potential of Georgian sea buckthorn as a source of natural antioxidants and lipids, with applications in health-promoting products.
沙棘（Hippophae rhamnoides L.）是格鲁吉亚一种丰富的野生浆果，是生物活性化合物的丰富来源，包括抗氧化剂、脂肪酸和酚类化合物，在食品、营养保健品和化妆品行业具有巨大的应用潜力。尽管其有传统用途，但格鲁吉亚沙棘的物理化学性质和增值潜力仍未得到充分探索。本研究旨在分析格鲁吉亚三个不同地区（阿扎尔、萨姆茨赫-扎瓦赫季和伊梅列季）的沙棘浆果的化学成分，并开发创新的、环境友好的提取技术，以最大限度地回收有价值的化合物。该研究使用了超声辅助提取（UAE）和超临界水提取（SWE）等先进技术，以及浸渍和索氏提取等传统方法，鉴定并定量了18种生物活性化合物，包括有机酸（苹果酸和柠檬酸）、酚酸（奎尼酸）和黄酮类化合物（如没食子儿茶素、儿茶素和异鼠李素衍生物）。脂质部分主要由C18脂肪酸（57.4%-76.9%）组成，富含亚油酸（29.4%-50.0%），提取产率因方法而异。总酚含量在19.90至34.94毫克/克干重之间，萨姆茨赫-扎瓦赫季和伊梅列季的样品含量较高。在萨姆茨赫-扎瓦赫季的浆果中观察到最高的类胡萝卜素含量（3.363毫克/克干重）。用75%乙醇的超声辅助提取优化了类胡萝卜素（1.684毫克/克）和酚类（8.213毫克/克）的回收率，而超临界水提取在仅7分钟内就实现了86%的脂质产率和高酚含量（92.25毫克/克）。富含类胡萝卜素的向日葵油的抗氧化活性比对照油高3.5倍，表明其氧化稳定性增强。该研究强调了绿色提取方法在沙棘副产品增值方面的功效，为生产高价值营养保健品和功能性食品提供了可持续解决方案。这些发现强调了格鲁吉亚沙棘作为天然抗氧化剂和脂质来源在促进健康产品中的应用潜力。
