Hampshire crosses of different genotype and sex were used to investigate the effects of rearing system, feed and handling on sensory quality, consumer preference and cooking loss. A selected and trained panel carried out descriptive tests. Two preference tests were carrieout by, in each case, 200 consumers.The genotype had a major effect on sensory quality in all four studies irrespective of rearing system, feed and sex. In three of the four studies pork from RN¯ carriers scored higher for juicines, tenderness, acidulous taste and meat taste intensity. Sex showed contradictory effects on sensory quality, while rearing system and feed had minor effects on sensory properties of pork.Hams (M. biceps femoris) from pigs reared outdoors scored lower for juiciness and acidulous taste than hams from pigs reared indoors. Loins from pigs organically reared (KRAV) scored lower for juiciness and higher for crumbliness than ones from pigs conventionallreared.Loins (M. longissimus dorsi) aged four days from conventionally fed pigs were juicier than ones from silage-fed pigs…
Contents
INTRODUCTION
Sensory Analysis
Application
Panellist performance
Internal Factors Affecting Pork Quality
Genotype
External Factors Affecting Pork Quality
Rearing
Feed
Handling
Ageing
Frozen storage
Cooking loss
AIM
MATERIAL & METHODS
Thesis Design
Animals
Breed
Sex
Rearing
Indoor rearing
Outdoor rearing
Organic rearing
Feed
Slaughter, cut of meat and ageing
RN genotype Determination
Sensory Analysis
Sample preparation
Thawing
Oven temperature
Core temperature
Cooking loss
Serving temperature
External panel recruitment
Sensory assessments
Consumer preference test
Statistical analysis
RESULTS AND DISCUSSION
Effects of Internal Factors on Sensory Quality
Genotype
Sex
Effects of External Factors on Sensory Quality
Rearing
Feed
Handling
Ageing
Frozen storage
Consumer Preference
RN¯ genotype
Rearing
Cooking Loss
Methodological Aspects
Choice of meat cut and sample preparation
Selection and training of a descriptive panel
CONCLUSIONS
ACKNOWLEDGEMENT
REFERENCES
Author: Jonsäll, Anette
Source: Uppsala University Library
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