scholarly journals CONSEQUENTIALITY BELIEFS AND CONSUMER VALUATION OF EXTRINSIC ATTRIBUTES IN BEEF

2017 ◽  
Vol 50 (1) ◽  
pp. 1-26 ◽  
Author(s):  
XIAOGU LI ◽  
KIMBERLY L. JENSEN ◽  
DAYTON M. LAMBERT ◽  
CHRISTOPHER D. CLARK
Keyword(s):  
Willingness To Pay ◽  
Food Industry ◽  
Ground Beef ◽  
Consumer Survey ◽  
Beef Industry ◽  
Consumer Valuation ◽  
Beef Products ◽  
Survey Responses

AbstractThis study measures willingness to pay (WTP) for extrinsic attributes (Angus, local, DNA traceable, raised carbon friendly, and humanely treated cattle) in steak and ground beef using choice-based experiments from a national consumer survey. Belief that survey responses could have consequences on beef products offered by the steak and ground beef industry is investigated, as well as its effect on attribute WTP. For most attributes, belief in consequentiality increases WTP. Results suggest that although consequentiality believers tend to place greater importance on certain food industry issues, they are less certain about the attribute's provision actually effecting change in the industry.

scholarly journals Consumer Preferences and Willingness to Pay for Locally Grown Organic Apples: Evidence from a Conjoint Study

HortScience ◽  
2010 ◽  
Vol 45 (3) ◽  
pp. 376-381 ◽  
Author(s):  
Qingbin Wang ◽  
Junjie Sun ◽  
Robert Parsons
Keyword(s):  
United States ◽  
Willingness To Pay ◽  
Food Industry ◽  
Consumer Preferences ◽  
Organic Food ◽  
Production Method ◽  
The United States ◽  
Important Food ◽  
Consumer Valuation ◽  
Locally Grown

Although organic food has rapidly emerged as an important food industry in the United States and many other countries, farmers and fruit growers need more information on consumer preferences and willingness to pay for locally grown organic food products to make better production and marketing decisions. This article presents the findings from a conjoint study on consumer valuation of major attributes of fresh apples (production method, price, certification, and product origin) and the tradeoffs between price and other attributes. Analysis results based on data from 382 respondents, or 3056 observations, in the state of Vermont suggest that there is likely a significant niche market for locally grown organic apples, and many consumers, especially people who had purchased organic food, are willing to pay significantly more for organic apples produced locally and certified by the Northeast Organic Farming Association. This study also suggests that there are significant differences in preferences between respondents who had purchased organic food and respondents who had not purchased organic food, although both groups showed a strong preference and willingness to pay for locally grown apples as compared with apples from other regions.

Consumers' Willingness to Pay for Locally Produced Ground Beef: A Case Study of the Rural Northern Great Plains

2013 ◽  
Vol 25 (1) ◽  
pp. 42-67 ◽  
Author(s):  
Kuo-Liang Chang ◽  
Pei Xu ◽  
Keith Underwood ◽  
Carlos Mayen ◽  
George Langelett
Keyword(s):  
Willingness To Pay ◽  
Great Plains ◽  
Ground Beef ◽  
Northern Great Plains

Thermal Inactivation of Escherichia coli O157: H7, Salmonella senftenberg, and Enzymes with Potential as Time-Temperature Indicators in Ground Beef

1997 ◽  
Vol 60 (5) ◽  
pp. 471-475 ◽  
Author(s):  
ALICIA ORTA-RAMIREZ ◽  
JAMES F. PRICE ◽  
YIH-CHIH HSU ◽  
GIRIDARAN J. VEERAMUTHU ◽  
JAMIE S. CHERRY-MERRITT ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Thermal Inactivation ◽  
Ground Beef ◽  
Escherichia Coli O157 ◽  
E Coli ◽  
Triose Phosphate ◽  
Beef Products ◽  
Z Value ◽  
D Values ◽  
Salmonella Senftenberg

The USDA has established processing schedules for beef products based on the destruction of pathogens. Several enzymes have been suggested as potential indicators of heat processing. However, no relationship between the inactivation rates of these enzymes and those of pathogenic microorganisms has been determined. Our objective was to compare the thermal inactivation of Escherichia coli O157:H7 and Salmonella senftenberg to those of endogenous muscle proteins. Inoculated and noninoculated ground beef samples were heated at four temperatures for predetermined intervals of time in thermal-death-time studies. Bacterial counts were determined and enzymes were assayed for residual activity. The D values for E. coli O157:H7 were 46.10, 6.44, 0.43, and 0.12 min at 53, 58, 63, and 68°C, respectively, with a z value of 5.60°C. The D values for S. senftenberg were 53.00, 15.17, 2.08, and 0.22 min at 53, 58, 63, and 68°C, respectively, with a z value of 6.24°C. Apparent D values at 53, 58, 63, and 68°C were 352.93, 26.31, 5.56, and 3.33 min for acid phosphatase; 6968.64, 543.48, 19.61, and 1.40 min for lactate dehydrogenase; and 3870.97, 2678.59, 769.23, and 42.92 min for peroxidase; with z values of 7.41,3.99, and 7.80°C, respectively. Apparent D values at 53, 58, 63, and 66°C were 325.03, 60.07, 3.07, and 1.34 min for phosphoglycerate mutase; 606.72, 89.86, 4.40, and 1.28 min for glyceraldehyde-3-phosphate dehydrogenase; and 153.06, 20.13, 2.25, and 0.74 min for triose phosphate isomerase; with z values of 5.18, 4.71, and 5.56°C, respectively. The temperature dependence of triose phosphate isomerase was similar to those of both E. coli O157 :H7 and S. senftenberg, suggesting that this enzyme could be used as an endogenous time-temperature indicator in beef products.

Comparison of Rapid Enzyme-Linked Immunosorbent Assay and Immunomagnetic Separation Methods for Detection of Escherichia coli O157 in Fecal, Hide, Carcass, and Ground Beef Samples

2007 ◽  
Vol 70 (10) ◽  
pp. 2230-2234 ◽  
Author(s):  
T. W. THOMPSON ◽  
T. P. STEPHENS ◽  
G. H. LONERAGAN ◽  
M. F. MILLER ◽  
M. M. BRASHEARS
Keyword(s):  
Escherichia Coli ◽  
Ground Beef ◽  
Immunomagnetic Separation ◽  
Separation Method ◽  
Enzyme Linked Immunosorbent Assay ◽  
Escherichia Coli O157 ◽  
Perfect Agreement ◽  
Fecal Samples ◽  
E Coli ◽  
Beef Products

Rapid enzyme-linked immunosorbent assays (ELISAs) are approved for detection of Escherichia coli O157 in beef products. However, these kits have also been used in the industry to detect this pathogen on hides or in feces of cattle, although this use has not been validated. The objective of this study was to compare commercially available ELISAs (E. coli Now, Reveal, and VIP) with immunomagnetic separation along with selective media to detect E. coli O157 on hides, in feces, and in medium- and low-level-inoculated ground beef and carcasses (simulated by using briskets) samples. Naturally infected hide and fecal samples were subjected to both the immunomagnetic separation method and ELISAs for the detection of E. coli O157. Additionally, E. coli O157 inoculated and noninoculated ground beef and beef briskets were used to simulate meat and carcass samples. When comparing the detection results from the ELISAs (E. coli Now, Reveal, and VIP) to the immunomagnetic separation method, poor agreement was observed for fecal samples (kappa = 0.10, 0.02, and 0.03 for E. coli Now, Reveal, and VIP, respectively), and fair-to-moderate agreement was observed for hide samples (kappa = 0.30, 0.51, and 0.29 for E. coli Now, Reveal, and VIP, respectively). However, there was near-perfect agreement between the immunomagnetic separation method and ELISAs for ground beef (kappa = 1, 1, and 0.80 for E. coli Now, Reveal, and VIP, respectively) and brisket (kappa = 1, 1, and 1 for E. coli Now, Reveal, and VIP, respectively) samples. Assuming immunomagnetic separation is the best available method, these data suggest that the ELISAs are not useful in detecting E. coli O157 from hide or fecal samples. However, when ELISAs are used on ground beef and beef brisket samples they can be used with a high degree of confidence.

scholarly journals 99 Effects of replacing monensin and tylosin in finishing cattle diets with essential oil and/or benzoic acid on meat color and oxidative stability of ribeye steaks and ground beef

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 56-56
Author(s):  
Lydia M Wang ◽  
Shiqi Huang ◽  
Sebastian Chalupa-Krebzdak ◽  
Sandra M Vasquez Mejia ◽  
Benjamin M Bohrer
Keyword(s):  
Benzoic Acid ◽  
Lipid Oxidation ◽  
Essential Oils ◽  
Repeated Measures ◽  
Block Design ◽  
Ground Beef ◽  
Thiobarbituric Acid ◽  
Finishing Cattle ◽  
Instrumental Color ◽  
Beef Products

Abstract This study examined the effects of replacing monensin and tylosin with essential oils and/or benzoic acid in finishing cattle diets on beef color stability and lipid oxidation during a simulated retail display period. The longissimus thoracis (LT) and semimembranosus (SM) muscles were obtained from 63 steers that were fed for 98 days on 1 of 5 finishing diets: no additional supplement (CON), monensin/tylosin (M/T), essential oils (EO), benzoic acid (BA), or a combination of essential oils and benzoic acid (COMBO). Instrumental color measured with a Minolta colorimeter and visual discoloration evaluated by two trained panelists were recorded daily for three beef products placed under simulated retail conditions, until a 60% surface discoloration was observed. The three beef products evaluated were LT steaks, and two types of ground beef patties manufactured with the SM muscles (lean – no additional fat and regular – 25% added fat). The thiobarbituric acid reactive substances (TBARS) assay was used before and after the shelf life display to determine the degree of lipid oxidation for products during the display. Data were analyzed as a randomized complete block design with the GLIMMIX procedure of SAS using repeated measures. Results indicated a treatment by day interaction (P < 0.0001) for visual discoloration and instrumental color of all three products. At the end of the display period, products from the COMBO diet had on average the least amount of visual discoloration and the greatest a* (redness) value, while the CON steaks and M/T ground beef had the most discoloration and the lowest a* values. TBARS values at d 0 and d 7 did not differ (P > 0.23) among treatments for all three products. Overall, supplemental ingredients in feed did not affect the color and degree of lipid oxidation of steaks and ground beef to a level deemed detrimental.

scholarly journals Ground Beef: Implications for the Southeastern U.S. Beef Industry

1979 ◽  
Vol 11 (2) ◽  
pp. 21-26
Author(s):  
J. Richard Conner ◽  
Robert W. Rogers
Keyword(s):  
United States ◽  
Fast Food ◽  
Ground Beef ◽  
The United States ◽  
Beef Industry ◽  
Increasing Trend ◽  
Fast Food Restaurants ◽  
Eating Out ◽  
At Home

Currently the United States consumes an estimated 39 to 45 percent of its beef in the “ground” form [3, 7, 8]. As recently as 1972 the estimated percentage of beef consumed as ground was only 33 [3] and some industry leaders have estimated the proportion by 1985 to be from 50 to 65 percent [5, 8, 11, 12]. This increasing trend in the percentage of beef consumed in the ground form is often attributed to several factors including (1) an increase in the percentage of wives working away from home which results in more “eating out” and less home preparation of “traditional” meat dishes for those meals consumed at home, and (2) the continuing growth of the fast-food restaurants and their popular “hamburger” meals [5, 8, 11, 12].

scholarly journals Co-Operation among Irish Beef Farmers: Current Perspectives and Future Prospects in the Context of New Producer Organisation (PO) Legislation

2018 ◽  
Vol 10 (11) ◽  
pp. 4085
Author(s):  
Hooks Teresa ◽  
Macken-Walsh Áine ◽  
McCarthy Olive ◽  
Power Carol ◽  
Henchion Maeve
Keyword(s):  
Supply Chain ◽  
Lessons Learned ◽  
Beef Industry ◽  
Market Positioning ◽  
Future Success ◽  
Beef Products ◽  
Beef Producers ◽  
Lack Of Commitment ◽  
The Impact ◽  
Beef Sector

Irish beef farms have experienced poor viability longitudinally, with industry and policy actors citing ‘crisis’ levels in 2013. A crucial differentiator between the beef sector and the dairy sector, which has higher farm incomes, is well-developed infrastructure of farmer-owned dairy processing and marketing co-operatives. To address the lack of representative farmer organisations and power imbalances in the beef supply chain, in 2016 the Department of Agriculture Food and the Marine (DAFM) legislated for the establishment of beef Producer Organisations (POs), facilitating beef producers to collectively strengthen their market positioning. While PO legislation is a significant development in potentially enabling supply chain integration of farmers, how the legislation is operationalised by Irish beef industry stakeholders will ultimately shape the nature and breadth of engagement with the PO model and, consequently, the impact of the legislation. In a context where there is little or no prior experience of such organisations in the beef sector, this paper presents an analysis of current stakeholder views in relation to the establishment of POs. Research involved a desk based review of the submissions made during the consultation period for the beef PO legislation and interviews with key informants in the Irish beef industry. We analysed Irish stakeholders’ views through the lens of lessons learned from the existing literature on how POs operate internationally. Results indicate some stakeholders’ perceptions of the need for a nationally coordinated approach in the establishment of an Association of POs, which concurs with the literature. However, stakeholders have not emphasised the benefits of Interbranch Organisations (IBOs), which involve vertical collaboration with other chain actors such as processors and retailers, an approach that has proven successful internationally. Nor have Irish stakeholders identified the potential of differentiating or premiumising beef products, which, according to international evidence, is necessary for improving profitability and farm-level incomes. Stakeholders identified the main threats to the future success of POs in Ireland as members’ lack of commitment and processors’ lack of willingness to engage with POs.

Comparative Effect of Heat Shock on Survival of O157:H7 and Non-O157 Shiga Toxigenic Escherichia coli and Salmonella in Lean Beef with or without Moisture-Enhancing Ingredients

2017 ◽  
Vol 80 (6) ◽  
pp. 1002-1008 ◽  
Author(s):  
Akhila Vasan ◽  
Steven C. Ingham ◽  
Barbara H. Ingham
Keyword(s):  
Escherichia Coli ◽  
Heat Shock ◽  
Thermal Tolerance ◽  
Pathogenic Bacteria ◽  
Elevated Temperatures ◽  
Sodium Tripolyphosphate ◽  
Beef Industry ◽  
Linear Portion ◽  
Beef Products ◽  
Pathogen Control

ABSTRACT Thermal tolerance of pathogenic bacteria has been shown to increase after exposure to sublethal elevated temperatures, or heat shock. We evaluated the effect of heat shock at 48°C on thermal tolerance (D55°C) of cocktails of O157 and non-O157 Shiga toxigenic Escherichia coli (STEC) and Salmonella in lean ground beef with or without moisture-enhancing ingredients. Beef was moisture enhanced to 110% (w) with a 5% NaCl–2.5% sodium tripolyphosphate (w/w) brine. Meat, with or without added brine, was inoculated (∼108 CFU/g) and heat shocked at 48°C for 0, 5, or 30 min, followed by isothermal heating at 55°C. Inoculated control samples were unenhanced and were not subject to heat shock. From the linear portion of the log CFU per gram surviving cells over time plots, D55°C-values (minutes) were calculated. D55°C was 20.43, 28.78, and 21.15 min for O157, non-O157, and Salmonella controls, respectively. Overall, heat shock significantly increased D55°C, regardless of pathogen (P &lt; 0.05). After 30 min of heat shock, D55°C increased 89 and 160% for O157 STEC, 32 and 49% for non-O157 STEC, and 29 and 57% for Salmonella, in unenhanced and enhanced samples, respectively, relative to the pathogen control. D55°C for Salmonella was the same or significantly less than for O157 and non-O157 STEC, regardless of heat shock, and was significantly less than for O157 and non-O157 STEC in all trials with moisture-enhanced meat (P &lt; 0.05). Moisture-enhancing ingredients significantly increased D55°C, regardless of pathogen (P &lt; 0.05). We suggest that thermal processes validated against Salmonella may not prove effective against STEC in all cases and that regulators of the beef industry should focus attention on STEC in nonintact moisture-enhanced beef products.

scholarly journals Assessing Consumer Preferences for Country-of-Origin Labeling

2005 ◽  
Vol 37 (1) ◽  
pp. 49-63 ◽  
Author(s):  
Maria L. Loureiro ◽  
Wendy J. Umberger
Keyword(s):  
United States ◽  
Willingness To Pay ◽  
Consumer Preferences ◽  
Country Of Origin ◽  
Early Summer ◽  
Consumer Survey ◽  
Safety Issues ◽  
Country Of Origin Labeling ◽  
Implementation Costs ◽  
Selection Of

In this paper, we assess consumer willingness to pay for a mandatory country-of-origin labeling (COOL) program applied to beef ribeye steaks, chicken breasts, and pork chops, all labeled as “Certified U.S.” products. A consumer survey was mailed in spring and early summer 2003 to households in the continental United States. Results indicate that consumers are in general very concerned about food safety issues, viewing U.S. meat as the safest among the selection of countries considered. Nevertheless, consumer willingness to pay for Certified U.S. products is relatively small, although above the expected implementation costs associated with a mandatory labeling program. This finding coincides with the fact that only 36% of the sample favored consumers paying directly for the costs related to a mandatory COOL program.

Multistate Outbreak of Multidrug-Resistant Salmonella Newport Infections Associated with Ground Beef, October to December 2007

2011 ◽  
Vol 74 (8) ◽  
pp. 1315-1319 ◽  
Author(s):  
J. L. SCHNEIDER ◽  
P. L. WHITE ◽  
J. WEISS ◽  
D. NORTON ◽  
J. LIDGARD ◽  
...  
Keyword(s):  
Case Control Study ◽  
Ground Beef ◽  
Multidrug Resistant ◽  
Chain Store ◽  
Department Of Agriculture ◽  
California Department ◽  
Salmonella Newport ◽  
Beef Products ◽  
Inspection Service ◽  
Control Study

In late October 2007, an outbreak of multidrug-resistant Salmonella Newport infections affected 42 case patients in California, Arizona, Idaho, and Nevada. A case-control study implicated ground beef from one chain store. Despite detailed ground beef purchase histories—including shopper card information for several case patients—traceback efforts by both the U.S. Department of Agriculture, Food Safety and Inspection Service and the California Department of Public Health were unable to identify the source of contamination. Case patients consumed multiple types of ground beef products purchased at numerous chain store A retail locations. These stores had received beef products for grinding from multiple beef slaughter–processing establishments. Detailed retail grinding logs and grinding policies that prevent cross-contamination between batches of ground beef products are crucial in the identification of contaminated beef products associated with foodborne illness.

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