Chapter 25, Problem 9CT

Summary Introduction

To answer:

The intrinsic and extrinsic factors that would contribute to the spoilage of butter, an apple, and a steak.

Introduction:

Intrinsic factors are the factors like the nutrient composition of food, which help in the growth of microorganisms. Some food contains an antimicrobial agent which inhibits the growth of the microorganism. While the extrinsic factors like temperature, $\text{pH}$, of food also help in the growth of the organism on food.