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Effects of beef enhancement with non-meat ingredients, blade tenderization, and vacuum tumbling on quality attributes of four beef cuts stored in a high oxygen environment

by Williams, Tracey Ann

Abstract (Summary)
The objective of this study was to evaluate the effects of non-meat ingredients,

blade tenderization and vacuum-tumbling on the textural, visual and sensory

characteristics of steaks from Biceps femoris, Supraspinatus, Triceps brachii long head,

and Longissimus dorsi muscles packaged in high oxygen, modified atomosphere (MAP)

system. United Department of Agriculture (USDA) Select muscles (n=72) from each cut

were obtained from a commercial processor over three processing days. Muscles were

aged for five days at 4ºC. Denuded muscles within a processing day were randomly

assigned to one of 24 treatments. This study was a 2 x 4 x 3 factorial arrangement where

treatments were control, injection (injected or non-injected), blade tenderization (0, 1, or

2 passes) and vacuum-tumbling (0, 5, 10 or 20 minutes). Injected muscles contained up

to 10% of a brine containing 1.55% potassium lactate, 0.1% sodium diacetate, 0.3%

sodium tripolyphosphate blend and 0.4% salt in the final product. Muscles were vacuumtumbled

and blade tenderized sequentially after injection. Steaks from the muscles were

stored in a high oxygen (80% O2, 20% CO2) MAP system for 0, 3, 7, 10 and 14 days at

2ºC. Steaks were evaluated for package purge (%), Warner-Bratzler shear force (kg),

cook loss (%), cook time (min), pH, CIE L* a* b* color space values and trained color

panel scores on each storage day. A trained descriptive attribute sensory panel evaluated

steaks on day 1 only. Warner-Bratzler shear force (P<0.01) and trained sensory panel

results (P<0.05) showed that the addition of non-meat ingredients improved tenderness in

all four muscles. Sensory detectable connective tissue was lower (P<0.01) in injected

steaks for all muscles except in Biceps femoris steaks. Injected steaks had higher pH

(P<0.01) measurements than non-injected treatments in all muscles except the Triceps

brachii long head. Neither blade tenderization nor vacuum-tumbling had consistent

effects in all four muscles. Vacuum-tumbled Biceps femoris steaks had lower bitter

flavor aromatics (P<0.05). In conclusion, enhancing beef with non-meat ingredients had

the greatest impact on the quality attributes of high connective tissue cuts and

Longissimus dorsi steaks.

Bibliographical Information:

Advisor:Miller, Rhonda; Keeton, Jimmy; Rooney, Lloyd

School:Texas A&M University

School Location:USA - Texas

Source Type:Master's Thesis

Keywords:injection tumbling potassium lactate

ISBN:

Date of Publication:12/01/2004

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