An In Vitro Digestibility Assay for Prediction of the Metabolizable Energy of Low‐Calorie Dextrose Polymeric Bulking Agents

JOHN S. WHITE, CARL M. PARSONS, DAVID H. BAKER

Research output: Contribution to journalArticlepeer-review

Abstract

A method was developed to predict in vivo digestibility and metabolizable energy of dextrose polymers from in vitro enzyme digestibility measurements. A high correlation (r = 0.98) was established between in vivo true digestibility (TD) and in vitro percent dextrose yield (DY) for polymeric compounds representing a wide range of in vivo digestibility (22–96%). The linear regression equation describing this relationship was TD (%) = 1.11 DY + 10.68. The in vivo nitrogen‐corrected true metabolizable energy (TMEn) of four test compounds was predicted from in vivo digestibility data with good accuracy using the linear regression equation TMEn (kcal/g) = 0.038 DY + 0.637 (r = 0.97). The in vitro method is most useful for predicting in vivo digestibility and metabolizable energy of dextrose polymers with in vitro dextrose yields less than 80% and in vivo metabolizable energy values less than 3.6 kcal/gram.

Original languageEnglish (US)
Pages (from-to)1204-1207
Number of pages4
JournalJournal of food science
Volume53
Issue number4
DOIs
StatePublished - Jul 1988

ASJC Scopus subject areas

  • Food Science

Fingerprint

Dive into the research topics of 'An In Vitro Digestibility Assay for Prediction of the Metabolizable Energy of Low‐Calorie Dextrose Polymeric Bulking Agents'. Together they form a unique fingerprint.

Cite this