Pomaces obtained from three San Marzano tomato genotypes including the wild type (WT), (SB), and (CL) were dried at 50 °C and analyzed for nutritional composition, total polyphenol (TPC), flavonoid (TFC) content, polyphenol qualitative profile, total antioxidant capacity (TAC), and antimicrobial activity. Commercial dried tomato powder (CTRP) was included as a control. No differences were detected nutritionally, in TPC and antimicrobial activity, but significant changes were observed for TFC and TAC, underlying variation in the phenolic profile. SB pomace (SBP) had the highest TFC and TAC. LC-HRMS analysis showed a flavonoid-enriched profile in SBP besides the exclusive presence of anthocyanins, with petanin and negretein as the most abundant. Among flavonoids, quercetin-hexose-deoxyhexose-pentose, naringenin, and rutin were the major. Overall, we showed the potential of dried tomato pomace, especially SBP, as an extremely valuable waste product to be transformed into a functional ingredient, reducing the food industry waste.

中文翻译：

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不同变种的番茄渣食物垃圾作为高抗氧化潜力资源

从三种 San Marzano 番茄基因型（包括野生型 (WT)、(SB) 和 (CL)）获得的果渣在 50 °C 下干燥，并分析其营养成分、总多酚 (TPC)、类黄酮 (TFC) 含量、多酚定性概况、总抗氧化能力 (TAC) 和抗菌活性。商业番茄干粉（CTRP）作为对照。在营养、TPC 和抗菌活性方面没有检测到差异，但在 TFC 和 TAC 方面观察到显着变化，这是酚类谱的潜在变化。 SB 果渣 (SBP) 的 TFC 和 TAC 最高。 LC-HRMS 分析显示，除了仅存在花青素外，SBP 中还富含黄酮类化合物，其中 petanin 和 negretein 含量最丰富。黄酮类化合物中，以槲皮素-己糖-脱氧己糖-戊糖、柚皮素、芦丁为主。总体而言，我们展示了干番茄渣（尤其是 SBP）作为一种极其有价值的废品的潜力，可以将其转化为功能性成分，从而减少食品工业的浪费。