Triacylglycerol and Fatty Acid Compositions of Blackberry, Red Raspberry, Black Raspberry, Blueberry and Cranberry Seed Oils by Ultra-Performance Convergence Chromatography-Quadrupole Time-of-Flight Mass Spectrometry.

Yinghua Luo,Yanfang Li,Boyan Gao,Liangli (Lucy) Yu,Junyi (Danny) Wang,Fanghao Yuan

doi:10.3390/foods10112530

Abstract

The triacylglycerol (TAG) compositions of blackberry, red raspberry, black raspberry, blueberry and cranberry seed oils were examined using ultra-performance convergence chromatography-quadrupole time-of-flight mass spectrometry (UPC2-QTOF MS). A total of 52, 53, 52, 59 and 58 TAGs were detected and tentatively identified from the blackberry, red raspberry, black raspberry, blueberry and cranberry seed oils, respectively, according to their accurate molecular weight in MS1 and fragment ion profiles in MS2. OLL was the most abundant TAG in the blackberry, red raspberry and black raspberry seed oils. Furthermore, the fatty acid compositions of the five berry seed oils were directly determined by gas chromatography coupled with mass spectrometry (GC-MS). In addition, the seed oils had total phenolic contents ranging 13.68–177.06 µmol GAE (gallic acid equivalent)/L oil, and significant scavenging capacities against DPPH, peroxyl, and ABTS+ radicals. These results indicated that the combination of UPC2 and QTOF MS could effectively identify and semi-quantify the TAGs compositions of the berry seed oils with sn-position information for the fatty acids. Understanding the TAGs compositions of these berry seed oils could improve the utilization of these potentially high nutritional value oils for human health.

Highlights

Introduction iationsBerries, including cranberry (Vaccinium macrocarpon), raspberry (Rubus idaeus), blackberry (Rubus fruticosus), blueberry (Vaccinium corymbosum) and strawberry (Fragaria × ananassa), are a group of widely consumed fruits globally
Blackberry, red raspberry, black raspberry, blueberry and cranberry seed oil samples were gifted from the Botanic Innovations (Spooner, WI, USA) and stored at −20 ◦ C before analyses
MO, USA) with a liquid chromatography coupled with mass spectrometry (LC-MS) purity

Summary

Introduction

Introduction iationsBerries, including cranberry (Vaccinium macrocarpon), raspberry (Rubus idaeus), blackberry (Rubus fruticosus), blueberry (Vaccinium corymbosum) and strawberry (Fragaria × ananassa), are a group of widely consumed fruits globally. Beside the sweet and sour tastes, berry fruits are well welcomed for particular nutraceutical values in delaying the aging process and reducing the risk of several human chronic diseases [1,2,3]. To date, these berry fruits are known for their potential antioxidant [4,5,6,7,8], anti-inflammatory [9,10] and antimicrobial properties [5,11,12,13]. Major berry products, including berry wines, beverages, jams and smoothies, result in large amount of their processing byproducts, Licensee MDPI, Basel, Switzerland

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