Istituto per lo Studio dei Materiali Nanostrutturati, CNR, Via U. La Malfa 153, 90146 Palermo, Italy.
Dipartimento DICEAM, Università degli Studi "Mediterranea" di Reggio Calabria, Via Graziella, Loc. Feo di Vito, 89122 Reggio Calabria, Italy.
Molecules. 2022 May 19;27(10):3243. doi: 10.3390/molecules27103243.
DRIFT, HPLC-MS, and SPME-GC/MS analyses were used to unveil the structure and the main functional compounds of red (blood) orange () and bitter orange (). The IntegroPectin samples show evidence that these new citrus pectins are comprised of pectin rich in RG-I hairy regions functionalized with citrus biophenols, chiefly flavonoids and volatile molecules, mostly terpenes. Remarkably, IntegroPectin from the peel of fresh bitter oranges is the first high methoxyl citrus pectin extracted via hydrodynamic cavitation, whereas the red orange IntegroPectin is a low methoxyl pectin. IntegroPectin has a uniquely high concentration of adsorbed flavonoids, especially the flavanone glycosides hesperidin, naringin, and eriocitrin.
DRIFT、HPLC-MS 和 SPME-GC/MS 分析用于揭示红（血）橙（）和苦橙（）的结构和主要功能化合物。IntegroPectin 样品表明，这些新型柑橘果胶由富含 RG-I 毛区的果胶组成，这些毛区功能化有柑橘生物酚，主要是类黄酮和挥发性分子，主要是萜类化合物。值得注意的是，通过水力空化提取的来自新鲜苦橙皮的 IntegroPectin 是第一个高甲氧基柑橘果胶，而红橙 IntegroPectin 是低甲氧基果胶。IntegroPectin 具有独特的高浓度吸附类黄酮，特别是黄烷酮糖苷柚皮苷、橙皮苷和圣草枸橼苷。
