A shell - and - tube heat exchanger is used to heat sugar solution by using steam. No data about the exchanger is given. Which film resistance is likely to control the overall heat transfer process:

Biochemical Engineering mainly deals with the design, construction, and advancement of unit processes that involve biological organisms (such as fermentation) or organic molecules (often enzymes) and has various applications in areas of interest such as biofuels, food, pharmaceuticals, biotechnology, and water treatment processes. (Source: Wikipedia)