Arch. Dis. Child. Fetal Neonatal Ed.. Published Online First: 11 January 2008. doi:10.1136/adc.2007.133280
Original articles |
Near infrared reflectace analysis to evaluate human milk's nitrogen and fat content in neonatal-intensive care unit
1 Istituto Clinico di Pediatria Preventiva e Neonatologia - Osp. Sant'Orsola-Malpighi - Univ. Bologna, Italy
* To whom correspondence should be addressed. E-mail: luicorva{at}almadns.unibo.it.
Accepted 27 December 2007
Abstract
Objective: To validate Near-Infrared Reflectance Analysis (NIRA) as a fast, reliable and suitable method for routine evaluation of human milk's nitrogen and fat content.
Setting: One Neonatal Intensive Care Unit.
Patients: 124 samples of expressed human milk (55 from preterm mothers and 69 from term mothers).
Intervention: Measurement of nitrogen and fat content both by NIRA and traditional methods (Gerber method for fat and Kjeldhal method for nitrogen).
Main outcome measures: Agreement between NIRA's and traditional methods' results. Variability in fat and nitrogen human milk content.
Results: A strong agreement was found between traditional methods' and NIRA's results (expressed as g/100 g of milk), both for fat and nitrogen content in term (mean fat content: NIRA=2.76; Gerber=2.76; mean nitrogen content: NIRA=1.88; Kjeldhal =1.92) and preterm (mean fat content: NIRA=3.56; Kjeldhal=3.52; mean nitrogen content: NIRA=1.91; Kjeldhal =1.89) mother's milk. <BR>Nitrogen content of the milk samples, measured by NIRA, ranged from 1.18 to 2.71 g/100 g of milk in preterm milk and from 1.48 to 2.47 in term milk; fat content ranged from 1.27 to 6.23 g/100 g of milk in preterm milk and from 1.01 to 6.01 g/100 g of milk in term milk.
Conclusions: NIRA can be used as a fast, reliable and suitable tool for routine monitoring of macronutrient content of human milk and for individualized human milk fortification in the feeding of very premature infants.
Keywords: Human milk nitrogen and fat content, Near-Infrared Reflectance Analysis, Neonatal Intensive Care Unit
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Arch. Dis. Child. Fetal Neonatal Ed. 2008 93: F329.[Extract] [Full Text] [PDF]
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