PMID- 23234354 OWN - NLM STAT- MEDLINE DCOM- 20131125 LR - 20161125 IS - 1520-5118 (Electronic) IS - 0021-8561 (Linking) VI - 61 IP - 1 DP - 2013 Jan 9 TI - Microencapsulation of L-5-methyltetrahydrofolic acid with ascorbate improves stability in baked bread products. PG - 247-54 LID - 10.1021/jf304229b [doi] AB - Fortification of foods with L-5-methyltetrahydrofolic acid (L-5-MTHF) is challenging due to low stability to environmental conditions that include exposure to pH, moisture, and temperature. The objective of the present study was to stabilize L-5-MTHF using microencapsulation technology. L-5-MTHF microcapsules constructed with different core-to-wall ratios of L-5-MTHF, both alone or in combination with sodium ascorbate, yielded high (>89%) recovery of L-5-MTHF. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) analysis confirmed successful encapsulation of L-5-MTHF with high core-to-wall ratios. Microencapsulation of L-5-MTHF alone with a high core-to-wall ratio significantly (p < 0.05) improved the stability of L-5-MTHF over the course of bread baking, performed both in pilot plant and in commercial baking conditions. Breads made with fortified flour containing sodium ascorbate coencapsulated with L-5-MTHF had recoveries of L-5-MTHF that were 97% and 77%, respectively, for pilot plant and bakery breads. Co-encapsulating L-5-MTHF with ascorbate also significantly (p < 0.05) improved stability during storage, as compared to breads that contained free L-5-MTHF. FAU - Liu, Yazheng AU - Liu Y AD - Food Nutrition and Health, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Green, Timothy J AU - Green TJ FAU - Wong, Philip AU - Wong P FAU - Kitts, David D AU - Kitts DD LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121221 PL - United States TA - J Agric Food Chem JT - Journal of agricultural and food chemistry JID - 0374755 RN - 0 (Tetrahydrofolates) RN - PQ6CK8PD0R (Ascorbic Acid) RN - TYK22LML8F (5-methyltetrahydrofolate) SB - IM MH - Ascorbic Acid/*chemistry MH - *Bread MH - Chromatography, High Pressure Liquid MH - Color MH - Spectrometry, Mass, Secondary Ion MH - Tetrahydrofolates/*chemistry EDAT- 2012/12/14 06:00 MHDA- 2013/12/16 06:00 CRDT- 2012/12/14 06:00 PHST- 2012/12/14 06:00 [entrez] PHST- 2012/12/14 06:00 [pubmed] PHST- 2013/12/16 06:00 [medline] AID - 10.1021/jf304229b [doi] PST - ppublish SO - J Agric Food Chem. 2013 Jan 9;61(1):247-54. doi: 10.1021/jf304229b. Epub 2012 Dec 21.