Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Click here to sign up for SAGE Journal Email Alerts today!

Sign In to gain access to subscriptions and/or personal tools.
Journal of Parenteral and Enteral Nutrition
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Carlson, S. J.
Right arrow Articles by Lombard, K. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Carlson, S. J.
Right arrow Articles by Lombard, K. A.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Effect of a Lactase Preparation on Lactose Content and Osmolality of Preterm and Term Infant Formulas

Susan J. Carlson, M.M.SC., R.D., L.D., C.N.S.D.

University of Iowa Hospitals and Clinics, Iowa City, Iowa

Ron R. Rogers, B.S.

University of Iowa Hospitals and Clinics, Iowa City, Iowa

Kenneth A. Lombard, M.D.

University of Iowa Hospitals and Clinics, Iowa City, Iowa

Lactose intolerance due to lactase deficiency often follows acute gastroenteritis. In such situations, a lactose-free formula may be indicated for preterm infants. Therefore, the effect of addition of lactase on the lactose content and osmolality of preterm and term infant formulas was studied. Lactose content of formulas at room temperature was decreased by approximately 50% 1 hour after addition of lactase. Concentration of lactose was reduced by 70% or more after 2 hours in all formulas. Because of the higher initial lactose concentration in term formulas, it took 24 hours to reach the same absolute lactose concentration (10 g/kg formula) found in preterm formulas after 2 hours. There was a moderate increase in osmolality in preterm formulas. The increase was greater in term formulas because of the greater initial concentration of lactose. The addition of lactase appears to be a suitable method for reduction of lactose content of preterm and term formulas, although the increase in osmolality of term formulas may preclude their clinical use. (Journal of Parenteral and Enteral Nutrition 15:564-566, 1991)

Journal of Parenteral and Enteral Nutrition, Vol. 15, No. 5, 564-566 (1991)
DOI: 10.1177/0148607191015005564
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?