Instituto Politécnico Nacional ⁻ CNMN, Unidad Profesional Adolfo López Mateos, Col. Zacatenco, México City, CDMX CP 07738, México.
División De Ciencias Naturales y de Ingeniería, Universidad Autónoma Metropolitana Unidad Cuajimalpa, México City, CDMX, CP 05300, Mexico.
Molecules. 2019 Apr 17;24(8):1524. doi: 10.3390/molecules24081524.
10,16-dihydroxyhexadecanoic acid obtained from agroresidual tomato waste, was oxidized to produce 7-oxohexadecanedioic acid in good yield (>70%) and purified without oxidation side products in one step. Polycondensation with 1,8-octanediol, yielded the polyester (poly(-carboxyl PA--OD)) with M = 2155.15 and M = 1637.27. The best enzymatic reaction conditions to get the polyester were using lipase CAL-B (%-by-wt relative to monomer) in toluene as a solvent for 1 h at 60 °C. The poly(-carboxyl PA--OD) was characterized by H- and C-NMR, mass spectrometry (MALDI-TOF) and the polyester film formed with a Langmuir-Blodgett Trough was analyzed by means of spectroscopic ellipsometry and atomic force microscopy.
从农业残余番茄废物中获得的 10,16-二羟基十六烷酸,经氧化后以良好的产率(>70%)生成 7-氧代十六烷二酸,并在一步中无需氧化副产物即可进行纯化。与 1,8-辛二醇进行缩聚反应,得到聚酯(聚(-羧基 PA--OD)),M = 2155.15 和 M = 1637.27。获得聚酯的最佳酶反应条件是在甲苯中使用脂肪酶 CAL-B(相对于单体的-%重量)作为溶剂,在 60°C 下反应 1 小时。聚(-羧基 PA--OD)通过 H 和 C-NMR、质谱(MALDI-TOF)进行了表征,通过 Langmuir-Blodgett trough 形成的聚酯膜通过光谱椭圆术和原子力显微镜进行了分析。