Establishment of an indirect ELISA method for detecting Salmonella infection based on Sptp protein in poultry

The Quick Summary

Salmonella is a very important germ that can make chickens sick and is bad for our food safety, costing a lot of money. Because of this, we need a good way to find out if chickens have been infected with Salmonella. This study made a new, special test called an indirect ELISA. This test uses a part of the Salmonella germ, called SptP protein, to find tiny fighters (antibodies) in chicken blood. These fighters show if the chicken has been exposed to Salmonella. The new SptP-ELISA test works very well; it is good at finding only Salmonella and is very accurate. This helps us keep our chickens and our food safe from this germ.

Practical Implications

This study’s development of an SptP-ELISA offers a significant practical implication for food science by enhancing the ability to detect Salmonella in poultry. Early and accurate detection allows for more effective surveillance and control measures on farms, preventing infected birds from entering the food supply chain. By reducing the presence of Salmonella at the source, the risk of foodborne illnesses in humans is substantially lowered. This diagnostic tool also contributes to the economic stability of the poultry industry by minimizing product recalls, reducing losses from outbreaks, and fostering consumer confidence in poultry products. Ultimately, it strengthens public health efforts by providing a crucial tool for Salmonella prevention and management within the food system.

Potential Use in Indonesia

In Indonesia, where poultry is a staple and often sold through traditional markets and street food vendors, a reliable diagnostic tool for Salmonella is crucial. This SptP-ELISA could enable faster monitoring of poultry health at the farm level, reducing contamination risks before products reach diverse local supply chains. This is particularly vital in a tropical climate, where the rapid multiplication of pathogens like Salmonella poses a constant challenge to food safety.

Original Abstract

Salmonella is a very important zoonotic pathogen that causes considerable economic losses and endangers food safety in poultry industry. So it is essential to develop an efficient diagnostic method to detect Salmonella infection in poultry. The present study established a novel indirect ELISA based on SptP protein as coating antigen to detect specific anti-Salmonella antibodies in poultry. The established SptP-ELISA exhibited high specificity and sensitivity, capable of detecting anti-SptP……

Read the full peer-reviewed publication here