Miljanić Jelena, Krstović Saša, Perović Lidija, Kojić Jovana, Travičić Vanja, Bajac Branimir
Institute of Food Technology, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia.
Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia.
Foods. 2024 Sep 30;13(19):3140. doi: 10.3390/foods13193140.
This study explores the potential valorization of blackberry seed oil cake (BBSOC), a by-product of cold-pressed blackberry seed oil ( L.), as a nutritionally valuable material with aflatoxin B1 (AFB1) adsorption properties. The chemical and mineral composition, polyphenols, and antioxidant activity of BBSOC flour were assessed. BBSOC was found to be a significant source of fiber (62.09% dry weight) and essential minerals such as Fe (123.48 mg/kg), Mg (1281.40 mg/kg), K (3087.61 mg/kg), and Ca (1568.41 mg/kg). The high polyphenol content, especially ellagic acid, highlighted its biologically active potential. Moreover, BBSOC demonstrated effective biosorption of AFB1 under in vitro conditions at 37 °C, with adsorption efficiencies of 85.36% and 87.01% at pH 3 and 7, respectively. Characterization techniques including SEM, FTIR analysis, Boehm titration, and pH zero charge determination confirmed its AFB1 adsorbing properties. This valorization process reintroduces a secondary product into the food chain, supporting the circular economy and zero-waste concepts. Thus, BBSOC is nutritionally rich and effective in AFB1 biosorption, presenting potential applications as a food or feed additive.
本研究探索了黑莓籽油饼（BBSOC）作为一种具有黄曲霉毒素B1（AFB1）吸附特性的营养有价值材料的潜在价值，黑莓籽油饼是冷榨黑莓籽油（L.）的副产品。对BBSOC面粉的化学和矿物质组成、多酚和抗氧化活性进行了评估。发现BBSOC是纤维（干重62.09%）以及铁（123.48毫克/千克）、镁（1281.40毫克/千克）、钾（3087.61毫克/千克）和钙（1568.41毫克/千克）等必需矿物质的重要来源。高多酚含量，尤其是鞣花酸，突出了其生物活性潜力。此外，BBSOC在37℃的体外条件下对AFB1表现出有效的生物吸附，在pH值为3和7时的吸附效率分别为85.36%和87.01%。包括扫描电子显微镜、傅里叶变换红外光谱分析、 Boehm滴定和零电荷pH值测定在内的表征技术证实了其对AFB1的吸附特性。这种增值过程将一种副产品重新引入食物链，支持循环经济和零废物概念。因此，BBSOC营养丰富且对AFB1生物吸附有效，作为食品或饲料添加剂具有潜在应用价值。
