Olive Oil Grades and Standards from the Olive Oil Commission of California

Research


OOCC Research Program

The Olive Oil Commission of California is authorized to fund research that is bene cial to the California olive oil industry. The overarching objectives of research conducted by the Olive Oil Commission of California are to continually improve the quality of California olive oils and to assist farmers in successfully growing a healthy, sustainable crop.

Currently, the OOCC is funding the projects noted below. Reports on past OOCC research projects can be accessed here.

Category: Olive Oil Quality

Analysis of 2017 Harvest Oil Quality Data

Objective: Provide California olive producers with an evaluation of the OOCC’s mandatory sampling and testing program and its impact on the quality of California olive oil.

Researcher: UC Davis Olive Center

Budget: $9,000

Survey on California commercial olive oil off-the-shelf in the marketplace

Objective: Gather and test samples of California olive oils collected at retail to inform handlers on how the quality of these oils are holding up in the marketplace and, when possible, compare retail tests to data collected at time of production.

Researcher: UC Davis Olive Center

Budget: $50,000

Protocol development for measuring induction time for olive oil and analysis of the OOCC samples for best before date

Researcher: UC Davis Olive Center

Budget: $9,050

Protocol development for measuring fat and moisture content of olives using near-infrared (NIR) spectroscopy or Soxhlet

Objective: Optimize procedures and develop a protocol for measuring fat and moisture content in olives using NIR and Soxhlet extraction methods used to determine olive fruit maturity.

Researcher: UC Davis Olive Center

Budget: $27,356

Category: Olive Oil Authenticity

Evaluation of Fatty Acid and Sterol Profiles for California Olive Oils

Objective: Build a robust database on the chemical makeup of olive oil from all regions of California for use in ensuring that OOCC purity standards are inclusive of all genuine olive oils produced in the state.

Researcher: UC Davis Olive Center

Budget: $39,000

Category: Pest/Disease Management

Epidemiology and Management of Olive Knot Caused by Pseudomonas Svastanoi PV. Savastanoi

Objective: Examine a number of potential treatments to prevent olive knot in California olive orchards.

Researcher: Dr. Jim Adaskaveg, UC Riverside

Budget: $15,000

Biology and Control of Neofabraea Leaf Spot, Branch Canker and Twig Dieback in Oil Olives in California

Objective: To learn more about neofabrae and begin developing control strategies for this new disease that is a serious threat to the California olive oil industry’s productivity.

Researcher: Flourent Trouillas, Kearney Agriculture Research and Extension Center, Parlier.

Budget: $42,000


Research Project Archive

EPIDEMIOLOGY AND MANAGEMENT OF OLIVE KNOT CAUSED BY PSEUDOMONAS SAVASTANOI PV. SAVASTANOI

Lead Investigator: J. E. Adaskaveg, University of California, Riverside

This multi-year project examines a number of potential treatments to prevent olive knot in California olive orchards. Olive knot, caused by the bacterium Pseudomonas savastanoi pv. Savastanoi, is considered one of the most economically important diseases of olives in California as infection may lead to tree defoliation, dieback, and reduced tree vigor, which ultimately lowers fruit yield.

Annual reports are available below and you can view a presentation by Dr. Jim Adaskaveg here.

Olive Knot Research Annual Report 2014

Olive Knot Research Annual Report 2015

Olive Knot Research Interim Annual Report – July 2016


Research Presentations

California Olive Oil Quality 2014-2017

A report on the Olive Commission of California’s Mandatory Sampling and Testing Program.

2014-2017 Results OOCC Sampling and Testing Program_Web
2016 Informational Program

The OOCC held an informational meeting for industry members on January 13, 2016. Below are videos of presentations given during this event.

Evolution of the Olive Oil Industry in California: Part 1– Albert Katz, OOCC Advisory Board

Evolution of the Olive Oil Industry in California: Part 2 – Jeff Colombini, OOCC Chairman

Overview of the OOCC Testing Program – Paul Miller, International Advisor to the Australian Olive Association

Olive Knot Research – Dr. Jim Adaskaveg, UC Riverside

Olive Leaf Scorch – Dr. Rodrigo Krugner, Agricultural Research Service, USDA

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