Homogeneity of fruits and vegetables comminuted in a vertical cutter mixer |
| |
Authors: | SJ Young CH Parfitt RF Newell TD Spittler |
| |
Affiliation: | U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Division of Pesticides and Industrial Chemicals, Washington, DC 20204, USA. |
| |
Abstract: | The homogeneity of comminuted composites of 20 lb samples of apples, cabbage, and green beans containing field-incurred residues of p, p'-methoxychlor was studied to determine whether a 5 min comminution in a 40 qt vertical cutter mixer produces a homogeneous composite and whether the size of test portions used accurately represents the composite. Duplicate test portions of 100, 50, 25, 10, 5, and 2 g taken from each of 6 separate sections of the mixer were analyzed by standard pesticide residue methodology for p, p'-methoxychlor. Results of this study confirmed that comminution of fresh produce in a 40 qt vertical cutter mixer, according to instructions described in the U.S. Food and Drug Administration's Pesticide Analytical Manual, Volume I, Section 203B, produces a homogeneous composite. No significant differences were found in the data for the 3 crops taken from the 6 sections of the mixer. Test portion weights of 100, 50, and 25 g produced equivalent results for all 3 crops. Statistically significant differences were observed for cabbage at 2, 5, and 10 g and for green beans at 2 g. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|