Pinolenic Acid in Structured Triacylglycerols Exhibits Superior Intestinal Lymphatic Absorption As Compared to Pinolenic Acid in Natural Pine Nut Oil

The positional distribution pattern of fatty acids (FAs) in the triacylglycerols (TAGs) affects intestinal absorption of these FAs. The aim of this study was to compare lymphatic absorption of pinolenic acid (PLA) present in structured pinolenic TAG (SPT) where PLA was evenly distributed on the glyc...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2017-03, Vol.65 (8), p.1543-1549
Main Authors: Chung, Min-Yu, Woo, Hyunjoon, Kim, Juyeon, Kong, Daecheol, Choi, Hee-Don, Choi, In-Wook, Kim, In-Hwan, Noh, Sang K, Kim, Byung Hee
Format: Article
Language:English
Subjects:
Animals
Esterification
Intestinal Absorption
Linolenic Acids - chemistry
Linolenic Acids - metabolism
Lymph - chemistry
Lymph - metabolism
Male
Molecular Structure
Nuts - chemistry
Nuts - metabolism
Pinus - chemistry
Pinus - metabolism
Plant Oils - chemistry
Plant Oils - metabolism
Rats
Rats, Sprague-Dawley
Triglycerides - chemistry
Triglycerides - metabolism
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Summary:The positional distribution pattern of fatty acids (FAs) in the triacylglycerols (TAGs) affects intestinal absorption of these FAs. The aim of this study was to compare lymphatic absorption of pinolenic acid (PLA) present in structured pinolenic TAG (SPT) where PLA was evenly distributed on the glycerol backbone, with absorption of pine nut oil (PNO) where PLA was predominantly positioned at the sn-3 position. SPT was prepared via the nonspecific lipase-catalyzed esterification of glycerol with free FA obtained from PNO. Lymphatic absorption of PLA from PNO and from SPT was compared in a rat model of lymphatic cannulation. Significantly (P < 0.05) greater amounts of PLA were detected in lymph collected for 8 h from an emulsion containing SPT (28.5 ± 0.7% dose) than from an emulsion containing PNO (26.2 ± 0.6% dose), thereby indicating that PLA present in SPT has a greater capacity for lymphatic absorption than PLA from PNO.
ISSN:0021-8561
1520-5118
DOI:10.1021/acs.jafc.6b05216