APHA
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American Public Health Association
133rd Annual Meeting & Exposition
December 10-14, 2005
Philadelphia, PA
APHA 2005
 
3142.0: Monday, December 12, 2005 - Board 6

Abstract #117030

Comparative quality assurance study of Tofu: Soya cheese

Frederick O. Oladeinde, MSc, PhD1, Bolanle A. Adeniyi, PhD2, O. Omueti, PhD3, Antony M. Kinyua, PhD4, A. Laditan, MD4, Alvin Kennedy, PhD5, Arthur Williams, PhD6, and Yvonne Bronner, ScD7. (1) Department of Pharmaceutical Chemistry, University of Ibadan, UI P. O. Box 20652, Ibadan, Nigeria, Morgan State University, CAM Center. Public Health Program., Baltimore, MD 21251, 443-885-1668, fredolad@yahoo.com, (2) Department of Pharmaceutical Microbiology and Clinical Pharmacy, University of Ibadan, UI P.O. Box 20652, Ibadan, Nigeria, (3) Department of Crops Utilization, Institute of Agricultural Research and Training, Obafemi Awolowo University, Moore Plantation, Ibadan, Nigeria, (4) Public Health Program, Morgan State University, Center for Complementary and Alternative Medicine (CCAM), 1700 East Cold Spring Lane, Baltimore, MD 21251-0001, (5) Department of Chemistry, Morgan State University, 1700 East Cold Spring Lane, Baltimore, MD 21251, (6) Department of Biology, Morgan State University, 1700 East Cold Spring Lane, Baltimore, MD 21251, (7) Department of Public Health, MPH/DrPH Program, Morgan State University, 1700 E. Cold Spring Lane, Baltimore, MD 21251

Abstract

A comparative analysis of the qualities of Tofu: Soya cheese stored under different conditions is reported. The storage conditions were refrigeration and ambient temperature. While sample A was packed in polythene bags and kept in the fridge, samples B and C were unpacked and placed under water before being stored in the refrigerator. Sample D was kept under water at ambient temperature. The storage water of samples B and D were changed every 3 days. Storage lasted for 9 days for all samples except sample D that lasted just one week before deterioration. Changes in acid value (mg.KOH/mL), pH, moisture content (%w/v), total solids (%w/v), and microbial activity (cells/mL) were monitored under various conditions of storage during the investigation. The orders of decreasing acid value, pH, total solids, moisture content, bacterial and fungal growth were: D&gtA&gtB>C; D&gtB>C; D&gtC>B; D&gtC>B; A&gtC&gtD&gtB and A&gtC&gtD&gtB respectively. Although samples A, B and C stored at refrigeration temperature revealed good keeping qualities such as low values, preservation of firmness and cohesiveness of tofu, sample B clearly established that storage under water at refrigerated temperature with regular change of water was suitable for the preservation of Tofu. The study also provided a scientific basis for the traditional method of preservation.

Learning Objectives: At the conclusion of the session, the participant (learner) in this session will be able to