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Fresno County
University of California
Fresno County

Serving Fresno County

Celebrating with Farm Bureau as they begin their Centennial year by receiving a proclamation from the Fresno County Board of Supervisors.


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Welcome Mandeep Virk-Baker to UCCE!

Dr. Mandeep Virk Baker is the Area Nutrition, Family, and Consumer Sciences advisor for Fresno and Madera Counties. She received her Ph.D. in Nutrition Sciences from University of Alabama at Birmingham in 2012. She also received her MPH degree and a Global Health Graduate Certificate from Johns Hopkins Bloomberg School of Public Health in 2013.  

She received her Registered Dietitian certification from the Commission on Dietetic Registration in 2014. Prior joining UCCE, Dr. Virk-Baker completed a post-doctoral Cancer Prevention  training at the National Cancer Institute/National Institutes of Health. At NCI, Dr. Virk-Baker’s research was focused in the areas of dietary carcinogens, tobacco, nutrition, and global health. Dr. Virk-Baker has expertise in basic lab science, epidemiology, community nutrition, public health & policy.

She is excited to join our Fresno team and is looking forward to building collaborations for extension and research in Fresno and Madera. She is passionate about utilizing her scientific skills for improving health and wellbeing of our local communities.

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California Safe Raisin Production Documented

California Safe Raisin Production Documented


Stephen Vasquez has teamed up with USDA-ARS Scientist Jeffery Palumbo to explore if San Joaquin Valley vineyards harbor fungi that produce ochratoxins; a known carcinogen. For the past 5-6 years, Asian and European countries have been testing for the presence of ochratoxins in grape products: fresh grapes, raisins, juice and wine. Commonly found in Mediterranean and South American grape growing regions, Aspergillus species, fungi that produce ochratoxin-A have been identified in California’s vineyards. Vasquez focused on raisins since the industry is changing from tray-dried to dried-on-the-vine (DOV) production. The difference in the two production systems is a cooler, higher humidity environment found in DOV vineyards, which is conducive to fungal growth. Raisins were collected from DOV vineyards prior to processing and sent to Palumbo for fungal morphological and DNA analysis. Results showed that in unprocessed raisins, ochratoxin can be isolated at levels well below the threshold set by raisin importing countries. It is expected that raisins processed by California raisin packers would further decrease the amount of detectable ochratoxin.  Raisin grape growers are confident that their product is safe and meets the ochratoxin test levels set by Asian and EU counties.

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The University of California Division of Agriculture and Natural Resources (ANR) is a statewide network of campus based Agricultural Experiment Station researchers and Cooperative Extension specialists located on the Berkeley, Davis and Riverside campuses working collaboratively with county-based Cooperative Extension advisors located in 50 county offices throughout the state.



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