Methods of commercial manufacture; Experimental procedure; Methods of Analyses; Oil of orange; Oil of grapefruit and 'Shaddock'; Oil of 'Persian' seedless lime; Oil of lemon; Mandarin type citrus oils; Ultraviolet spectrum of citrus oils; Spectrophotofluorescence of citrus oils; Factors affecting the stability of citrus oils; D-limonene (citrus stripper oil); Peel oil content of various citrus cultivars; Citrus leaf and blossom oils.

Increased production and processing of many different comercially valuable specialty products from citrus fruits has become a reality in the last decade. Continuation of this trend into the immediate future is almost certain, since the potential value of these products to the citrus industry is now being realized. The industrial value for many of these by-products may be great when one considers that mony of these by-products may be great when one considers that money would have to be spent for pollution or waste control if the products were not developed into marketable commodities. Recovery of (+) - limonene from plant centrifuge effluents is just one example of such a product.

One of the more importat problems facing the citrus industry and other agricultural industries is the determination of residues of pesticides that remain after harvesting. This urgent need for accurate residue information and samples for establishing tolerances, representing commercial practice, has been one of the motivating forces in providing pilot plant facilities for this purpos at the Agricultural Research and Education Center, Lake Alfred (AREC-LA).