Related Experiment Video
Updated: Apr 19, 2026
05:17
Preparation of High-Quality Fermented Fish Product
Published on: August 23, 2019
11.2K
Ochratoxin A reduction in meat sausages using processing methods practiced in households
Jelka Pleadin1, Nina Perši, Dragan Kovačević
1a Laboratory for Analytical Chemistry , Croatian Veterinary Institute Zagreb , Zagreb , Croatia.
Food Additives & Contaminants. Part B, Surveillance
|December 16, 2014
Summary
Baking effectively reduces ochratoxin A (OTA) in homemade sausages by up to 75.8%. Other heat treatments like cooking and frying show minimal OTA reduction, highlighting baking as a key method for mycotoxin control in meat products.
Area of Science:
- Food Science
- Mycotoxicology
- Food Safety
Background:
- Ochratoxin A (OTA) is a mycotoxin found in various food products, including meat.
- Contaminated feed can lead to OTA accumulation in livestock, posing a risk to consumers through meat products.
- Understanding OTA reduction methods in home-prepared foods is crucial for public health.
Purpose of the Study:
- To evaluate the effectiveness of common household heat processing methods in reducing OTA levels in meat sausages.
- To compare the efficacy of cooking, frying, and baking on OTA degradation in sausages.
- To determine the optimal heat treatment for minimizing OTA contamination in homemade meat products.
Main Methods:
- Fifty meat sausages made from OTA-exposed pig raw materials were analyzed.
- OTA concentrations were quantified using enzyme-linked immunosorbent assay (ELISA) and confirmed with high-performance liquid chromatography (HPLC).
- Sausages underwent household heat treatments: cooking (100°C, 30 min), frying (170°C, 30 min), and baking (190-220°C, 60 min).
Main Results:
- OTA levels varied based on sausage type and raw material contamination, with lower concentrations in Mediterranean and roast sausages.
- Baking at 190-220°C for 60 minutes significantly reduced OTA by 75.8%.
- Cooking at 100°C for 30 minutes and frying at 170°C for 30 minutes yielded lower OTA reductions of 7.4% and 12.6%, respectively.
Conclusions:
- Household heat processing can reduce OTA concentrations in meat products, though effectiveness varies significantly with the method.
- Baking is the most effective heat treatment for reducing OTA in homemade sausages compared to cooking or frying.
- These findings emphasize the importance of processing methods in mitigating mycotoxin risks in home-prepared meat products.
Related Concept Videos
01:202° Amines to N-Nitrosamines: Reaction with NaNO2
5.9K
Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.
5.9K
01:23Microbial Spoilage of Food
174
Microbial food spoilage refers to the degradation of food quality resulting from the metabolic activity of microorganisms such as bacteria, yeasts, and molds. These microbes proliferate on various food substrates depending on factors such as moisture content, nutrient availability, and storage conditions, leading to undesirable sensory and structural changes.Bacteria are primary agents of spoilage in high-moisture, nutrient-dense foods like meat, milk, and vegetables. Microbial spoilage occurs...
174
01:27Microbes in the Production of Fermented Foods
263
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
263
01:29Preparation of Amines: Reduction of Oximes and Nitro Compounds
5.0K
Oximes can be reduced to primary amines using catalytic hydrogenation, hydride reduction, or sodium metal reduction. The reduction of aliphatic and aromatic nitro compounds to primary amines takes place by either catalytic hydrogenation or by using active metals like Fe, Zn, and Sn in the presence of an acid.
Though catalytic hydrogenation can reduce nitrobenzenes, the reduction is nonselective in the presence of other functional groups. For instance, if nitrobenzene contains an aldehyde group,...
Though catalytic hydrogenation can reduce nitrobenzenes, the reduction is nonselective in the presence of other functional groups. For instance, if nitrobenzene contains an aldehyde group,...
5.0K
01:23Physical Methods for Controlling Microbial Growth: Temperature
1.7K
Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...
1.7K
01:20Radical Autoxidation
3.5K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
3.5K