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Post Harvest – Page 3

2007 James E Adaskaveg (Treatment Evaluation)

Evaluation of New Postharvest Treatments to Reduce Postharvest Decays and Improve Fruit Quality in Citrus Packinghouse Operations

New postharvest treatments are being developed for the management of postharvest decays of citrus fruit. For the new fungicides against Penicillium decays (i.e., azoxystrobin, fludioxonil, pyrimethanil), we are optimizing suggested usage strategies and application methods.

2007 Mary Lu Arpaia and David Obenland ( SSC TA Ratio)

Relationship Between
SSC/TA Ratio and Acceptability of Navel Orange

Overview of Year 4:
This was the final year of a 4-year project conducted to evalu- ate the relationship between soluble solids content/titratable acidity (SSC/TA) and other potential indicators of flavor with navel orange acceptability.

2006 M. L. Arpaia (Support for a Dedicated Facility for Sensory Evaluation at the UC Kearney Research and Extension Center)

Support for a Dedicated Facility
for Sensory Evaluation at the UC Kearney Research and Extension Center

Sensory analysis is a crucial part of the postharvest research program in general and plays a pivotal role in our citrus research efforts. As part of a new philosophy, sensory analysis focuses on research developments for an improved consumer product. From new horticultural or pest manage-ment practices to new varietal selections, the focus of fruit commodities should be centered on sensory evaluation for determining positive, neutral or negative impact on the product from a consumer perspective.

2006 M. L. Arpaia (Relationship Between SSC/TA Ratio and Acceptability of Navel Orange)

Relationship Between SSC/TA Ratio and Acceptability of Navel Orange

The objectives for 2005-06 were: (1) Comparison of the Boswell press, and other juicing methods on SSC/TA reading; (2) Comparison of fruit from varying San Joaquin Valley production areas using the UC KAC taste panel; and (3) Conduct preliminary storage and sensory evaluation of the irradiated W. Murcott from 3 locations.

2006 James G. Leesch (Efficacy of Ozone Combination Treatment to Control Bean Thrips in Navel Oranges)

Efficacy of Ozone Combination Treatment to Control Bean Thrips in Navel Oranges

Ozone Gas Combined with Carbon Dioxide and Vacuum to Control Bean Thrips in Navel Oranges: Effect of Wax Type and Rate of Application on Phytotoxicity.

2006 Joseph L. Smilanick (New Methods to Control Postharvest Decay of Citrus)

New Methods to Control Postharvest Decay of Citrus

The purpose of this project is to evaluate new methods to extend the postharvest life of fresh citrus fruit.

2006 James F. Thompson (Survey of Sensing Methods for Detection of Freeze Damage in Oranges)

Survey of Sensing Methods for Detection of Freeze Damage in Oranges

The goal of this project is to develop and test field methods for using an ethanol sensor and magnetic resonance to measure whether a sample of oranges contains a threshold level of freeze-damaged fruit.

2006 Bret Wallach (Robotic Mechanical Harvester for Fresh Market Citrus)

Robotic Mechanical Harvester for Fresh Market Citrus

This year’s project goal was to complete the Scout’s concep-tual development: (1) Determine the ability of the scout to see and map the fruit on the trees; (2) Determine the required arm complexity; and (3) Complete the scout virtual reality simulation.