A model for predicting vitamin breakdown in space. Free Technical Library News

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A model for predicting the decay of vitamins in space

20.09.2019

A team of nutrition scientists at the University of Massachusetts Amherst has developed a groundbreaking, user-friendly mathematical model for NASA that should ensure that astronauts' food stays nutrient-rich during long space missions.

The new study gives NASA a time-saving opportunity to predict the degradation of spaceflight vitamins over time and to more accurately and efficiently plan resupply. The study was funded by a $982 NASA grant.

"There was no information in the literature to directly answer the questions and concerns that NASA had. We used real-time data in our study to train a mathematical model and determine how predictive and robust the model would be," said study author Khan Xiao, professor and scientist at Clydesdale Scholar of Food Science.

Xiao and colleagues have shown for the first time how thiamine (vitamin B1) degrades within two years on three team menu options: brown rice, pea soup and beef brisket. Xiao says it was "pretty good" to find that brown rice and pea soup stored at 20°C showed resistance to thiamine degradation. However, the thiamine in beef brisket was far less stable, retaining only 3 percent of the vitamin after two years.

The researchers note that NASA emphasizes the importance of obtaining nutrients naturally from food. "It's preferable for better health," Xiao says. "More and more studies show that your body takes vitamin pills differently from real foods like pea soup."

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