nutrition-and-health-2017_posters-accepted-abstracts

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February 20-21, 2017 Berlin, Germany

International Congress on

Nutrition & Health

Volume 7 Issue 1 (Suppl)

J Nutr Food Sci

ISSN:2155-9600 JNFS, an open access journal

Nutrition & Health 2017

February 20-21, 2017 Berlin, Germany

Elucidating the origin of production of milk powder commercially distributed on the Chinese market

using multi element stable isotope technique

Eyram Norgbey, Jingyu Huang, Philip N Nkrumah, Gloria Appiah-Sefah

and

Rainizafy S Michel

Hohai University, China

he economically motivated adulteration of milk powder in the Chinese market has increasingly become a major public

concern. The study was done to ascertain the feasibility of utilizing δ

H, δ

O and δ

N stable isotope technique in elucidating

the authenticity and origin of milk products on the Chinese market. Milk powder from North America, Oceania and China were

analyzed. An elemental analyzer was connected to an isotope ratio mass spectrometer operated in the continuous flow mode was

utilized. Statistical analysis was performed using descriptive statistics and one-way ANOVA. The study revealed that both δ

H and

O had a wide range of mean values: 13.86 to 22.25‰ and -82.86 to -28.5‰, respectively. There was a significant difference in the

H and δ

O composition of the milk samples of (P<0.05; F=20880) and (P<0.05; F=1399.0), respectively. Both the δ

H and δ

isotopic technique could provide a clear distinction between all the specific regions-of-origins that were evaluated except between the

northern part of China (mean=21.63) and New Zealand (mean=21.62), δ

O isotopic could not discriminate. The feasibility of δ

and δ

O is mainly based on the distinct isotopic signatures of water in different geographic localities. The range of the mean δ

values of the samples was very close, 3.06 to 5.61%. The nitrogen stable isotope could not provide a clear distinction for most of the

milk products because δ

N of an animal reflects that of the diet. Hence in cases of similar diet, it cannot provide a distinction between

the animals using this technique.

J Nutr Food Sci 2017, 7:1 (Suppl)