Navigation Links
New biomarker for raw milk quality detection
Date:6/15/2010

Strict milk quality tests had drawn a national attention throughout China in the wake of the baby formula milk powder contamination incident. The individual classic markers for milk quality control, particularly protein concentration, are easy to be manipulated and it is difficult to use these markers to monitor the raw milk content in formula milk and various milk products. The findings, published this week in Cell Research, could lead to a completely new standard for milk quality control, and possible new milk products with specific usage in the future.

The research group, led by Drs. Chen-Yu Zhang and Ke Zen at Nanjing University School of Life Sciences, found that cow milk contains large amount of microRNAs (miRNAs), a 19-23nt in length non-coding RNA, and the unique expression profile of milk-specific miRNAs can serve as a novel indicator and possible new standard for the quality control of raw milk and milk-related commercial products, such as fluid milk and powdered formula milk. Through systematic analysis of milk miRNA in milk via Solexa sequencing and real time qRT-PCR, they found that miRNA profiling was different at various stage of lactation. Compared to the previous finding by the same group that serum miRNAs serve as non-invasive fingerprint for cancer or other disease, the current study shows that cow milk contains milk-specific miRNAs and their concentrations are generally higher than those in serum. Seven milk-enriched miRNAs have been selected and their levels are proportionally correlated to the content of raw milk. "Compared to traditional indicator for milk", said by Professor Zhang, "milk miRNA-based biomarker provides much more accurate tool for milk quality control because this biomarker contains multiple miRNAs, and these miRNAs acturally reflect the various property of milk".

Besides serving as new indicator for milk content, finding functional miRNAs in milk may also change our understanding of nutrient in milk-related product. Added by Professor Ke Zen, "if we can identify the biological function of various miRNA in milk, by removing or adding certain miRNA, we may generate new milk products specialized for certain people groups".


'/>"/>

Contact: Mr. Zhang Liwei
zhanglw@nju.edu.cn
86-258-359-2829
Nanjing University School of Life Sciences
Source:Eurekalert

Related biology news :

1. A search for biomarkers for early detection of colorectal cancer
2. Singulex Teams With Wyeth Pharmaceuticals to Translate Pre-Clinical Biomarker Research Into Clinical Study Design
3. Genetic Engineering & Biotechnology News reports on cancer biomarkers
4. Biomarkers allow doctors to match therapy to patient
5. Biomarker predicts malignancy potential of HG-PIN lesions in the prostate
6. Scientists find potential protein biomarkers for growth hormone
7. Urologists identify 7 biomarkers that may help pinpoint prostate cancer recurrence
8. Researchers seeking to identify Alzheimers risk focus on specific blood biomarker
9. Biomarkers for identifying infant infections
10. Vitamin C lowers levels of inflammation biomarker considered predictor of heart disease
11. CHIs 5th Biomarker World Congress: Signature Event with Cutting-Edge Agenda
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/4/2016)... , Feb. 4, 2016 The field ... one of the most popular hubs of the ... and other huge studies of human microbiota, have ... few years, the microbiome space has literally exploded ... research. This report focuses on biomedical aspects ...
(Date:2/2/2016)... , Feb. 2, 2016  BioMEMS ... are primarily focused on medical screening and ... point-of-care parameters. Wearable devices that facilitate and ... freedom of movement are being bolstered through ... human biomedical signal acquisition coupled with wireless ...
(Date:2/2/2016)... 2, 2016  Based on its recent analysis ... recognizes US-based Intelligent Retinal Imaging Systems (IRIS) with ... for New Product Innovation. IRIS, a prominent cloud-based ... America , is poised to set the ... retinopathy market. The IRIS technology presents superior price-performance ...
Breaking Biology News(10 mins):
(Date:2/5/2016)... 5, 2016 Australian-US drug discovery and development company, ... appointment of a new Chairman, Mr John O,Connor , ... immediately. James Garner , has also been ... former Acting CEO, Mr Iain Ross , will resume ... --> James Garner , has also been formally appointed ...
(Date:2/4/2016)... (PRWEB) , ... February 04, 2016 , ... ... latest GC-MS and triple quad LC-MS, host live demos and poster sessions, and ... conference and exhibition. The conference takes place March 6 to 10 at the ...
(Date:2/4/2016)... and MENLO PARK, Calif. , Feb. 4, ... and the "Company"), a biopharmaceutical company focused on the development ... will present at the 18 th Annual BIO ... at 10:00 a.m. EST in New York, NY ... and CEO, will provide an update on the ongoing clinical ...
(Date:2/4/2016)... Sinovac Biotech Ltd. ("Sinovac" or the "Company") ... products in China , today announced ... received on February 4, 2016 a preliminary non-binding proposal ... of PKU V-Ming ( Shanghai ) Investment ... Development ( Shenzhen ) Fund Management Co., ...
Breaking Biology Technology: