@article{1998361, title={Trienzyme Treatment for Food Folate Analysis: Optimal pH and Incubation Time for α-Amylase and Protease Treatments}, author={Kenji AISO and Tsunenobu TAMURA}, journal={Journal of Nutritional Science and Vitaminology}, volume={44}, number={3}, pages={361-370}, year={1998}, doi={10.3177/jnsv.44.361} }