title: Chemometric approach to develop frying stable sunflower oil blends stabilized with oleoresin rosemary and ascorbyl palmitate.
abstract: The frying performance of sunflower oil blends (SOBs) stabilized with oleoresin rosemary (Rosmarinus officinalis L.) (ROSM) (200-1500mg/kg) and ascorbyl palmitate (AP) (100-300mg/kg) were tested for 18hopen pan-frying. Sunflower oil with TBHQ (SOTBHQ) (200mg/kg) and without additives (SOcontrol) served as positive and negative controls, respectively. The frying stability was monitored over time by estimating the levels of conjugated dienes, total polar compounds, polymeric compounds viz., triglyceride polymers, dimers, oxidized triglyceride monomers, diglycerides and free fatty acids, and induction period based on Rancimat. Chemometric tools were used to classify the oil samples based on frying stability. Thermo-oxidative changes were reduced significantly for blends stabilized with ROSM and AP (p<0.05). Principal component analysis (PCA) and hierarchical cluster analysis (HCA) distinguished SOBs from positive controls. A formulation consisting of 1309.62 and 129.29mg/kg of ROSM and AP, respectively, was optimized using a hybrid PCA-RSM approach.
authors.affiliation: Agricultural & Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India. Electronic address: ruv.16jy@gmail.com.
authors.forename: Rohit
authors.initials: R
authors.lastname: Upadhyay
authors.affiliation: Agricultural & Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India.
authors.forename: Sneha
authors.initials: S
authors.lastname: Sehwag
authors.affiliation: Agricultural & Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India.
authors.forename: Hari
authors.initials: H
authors.lastname: Niwas Mishra
mesh_terms: D001205:Ascorbic Acid / Q000031:analogs & derivatives* / Q000737:chemistry; D003296:Cooking; D006358:Hot Temperature; D010936:Plant Extracts / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D027542:Rosmarinus / Q000737:chemistry*; D000074242:Sunflower Oil
chemical_list: D010936:Plant Extracts; D010938:Plant Oils; D000074242:Sunflower Oil; C018620:oleoresins; D001205:Ascorbic Acid; C031226:6-O-palmitoylascorbic acid
keywords: Principal component analysis; Response surface methodology; Rosemary (Rosmarinus officinalis L.); Sunflower oil; Total polar compounds; Triglyceride polymers