Rapid, accurate and routine HPLC method for large-scale screening of pro-vitamin A carotenoids in oilseeds

Bhatnagar-Panwar, M and Bhatnagar-Mathur, P and Bhaaskarla, V V and Dumbala, S R and Sharma, K K (2015) Rapid, accurate and routine HPLC method for large-scale screening of pro-vitamin A carotenoids in oilseeds. Journal of Plant Biochemistry and Biotechnology, 24 (1). pp. 84-92. ISSN 0974-1275

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Plant carotenoids, the precursors of vitamin A display several important biological functions as antioxidants and anti-carcinogens. The oilseed crops, owing to their high oil content, form a good matrix for the bioavailability of β-carotene, thereby providing potential targets for biofortification to combat vitamin A deficiency (VAD). However, the screening and characterization of these crops, that otherwise contain very low levels of pro-vitamin A carotenoids has been difficult owing to their poor recovery and strong binding to the oil matrix. Here, we report a rapid method for high volume HPLC analysis involving the extraction and determination of β-carotene in four oilseed crops (peanut, soybean, sunflower and mustard). This included a comprehensive study of the factors that potentially influence the qualitative and quantitative yields of β-carotene in these crops. This is the first crop-independent HPLC method for the quantification of pro-vitamin A carotenoids that shows excellent recovery and reproducibility (>90 percentage recovery in oil) using small tissue sample and is capable of processing up to 30 samples per day. The protocol is sensitive, and enables better detection and separation of individual carotenoids by reducing artefacts during extraction, purification and chromatography that can be used for routine screening of oilseeds.

Item Type: Article
Subjects: Mandate crops > Groundnut
Others > Genetics and Genomics
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 24 Sep 2013 14:50
Last Modified: 12 Aug 2016 08:04
URI: http://oar.icrisat.org/id/eprint/7119
Official URL: http://dx.doi.org/10.1007/s13562-013-0239-1
Projects: HarvestPlus Challenge Program
Funders: Government of India - Department of Biotechnology
Acknowledgement: This research was supported by grants from HarvestPlus Challenge Program and the Department of Biotechnology, Government of India. We thank the Directorate of Oilseed Research, Hyderabad, India and the Peanut Breeding unit of ICRISAT for providing the seeds for this research. The technical support received from Mohd. Yousuf, D. Pandary and C. Lakshminarayana is duly acknowledged.
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