Abstract
Background: The energy value of a substance is essential in nutritional labeling. However, the available energy of newly developed highly cross-linked phosphate starch (HCPS-N) and modified cellulose (MC) are unknown.
Objective: To evaluate the available energy of HCPS-N and MC, an indirect and simple method which was applied as an indicator of the fermentability based on the breath hydrogen excretion, was used.
Methods: HCPS-N was made from tapioca starch by polymerization in the presence of 0.5% phosphoric acid. MC was made from microcrystalline cellulose, maltodextrin, and karaya gum to attain a highly stable suspension. The present study was carried out using a within-subject, repeatedmeasures design. Blood was collected at 30 min intervals for 3 h after the ingestion of 30 g of a test substance. The end-respiratory gas was collected for 14 h after ingestion of 5 g of a test substance to evaluate the available energy.
Results and Discussion: Plasma glucose and insulin levels did not elevate after the ingestion of HCPS-N, although they increased significantly after glucose ingestion. In the experiments to evaluate the available energy, breath hydrogen excretion after ingesting HCPS-N did not increase distinctly during the experiment. Breath hydrogen excretion after preceding HCPS-P (0 kcal) ingestion was also markedly smaller compared with the peak value at 4 h after FOS ingestion. For the ingestion of MC, breath hydrogen excretion increased scarcely, and the basal level remained until the end of the experiment.
Conclusion: The available energies were evaluated to be 0 kcal/g for HCPS-N and 1 kcal/g for MC in healthy humans.
Keywords: Available energy, breath hydrogen, dietary fibers, fermentability, highly cross-linked starch, modified cellulose.
Graphical Abstract
[http://dx.doi.org/10.1111/j.1750-3841.2011.02247.x] [PMID: 22417501]
[http://dx.doi.org/10.2174/1573401314666181112143530]
[http://dx.doi.org/10.3177/jnsv.54.309] [PMID: 18797153]
[http://dx.doi.org/10.1093/jn/11.5.433]
[PMID: 7027952]
[http://dx.doi.org/10.1093/ajcn/47.4.608] [PMID: 3281434]
[http://dx.doi.org/10.1111/j.1365-2672.1991.tb02739.x] [PMID: 1938669]
[http://dx.doi.org/10.3177/jnsv.60.246] [PMID: 25297613]
[http://dx.doi.org/10.1351/pac200274071253]
[http://dx.doi.org/10.1186/s12986-016-0073-2] [PMID: 26884803]
[PMID: 20334184]
[http://dx.doi.org/10.1021/jf505844y] [PMID: 26027636]
[http://dx.doi.org/10.1093/jn/114.9.1574] [PMID: 6332183]
[http://dx.doi.org/10.1093/jn/119.4.553] [PMID: 2495342]
[http://dx.doi.org/10.1038/sj.ejcn.1601666] [PMID: 12947435]
[http://dx.doi.org/10.3177/jnsv.53.13] [PMID: 17484374]
[http://dx.doi.org/10.1016/j.nut.2004.08.005] [PMID: 15561487]
[http://dx.doi.org/10.4327/jsnfs.64.403]
[http://dx.doi.org/10.1136/jcp.22.2.158] [PMID: 5776547]
[http://dx.doi.org/10.1016/S0009-9120(80)91040-1] [PMID: 6778631]