Proteins in plant-based meat alternatives may not be as accessible to human cells as those from real meat, a new study has suggested.

While plants rich in protein, such as soybeans, are commonly used worldwide, researchers, including those from the Ohio State University in the US, say it is unclear how much of the nutrient makes it into human cells.

In the study published on Wednesday in the Journal of Agricultural and Food Chemistry, scientists assessed if human cells grown in a lab absorb the same quantities of the protein building blocks peptides from meat alternatives as they do from chicken.

The findings may lead to new ingredients that may increase the uptake of nutrients from plant-based meat products, researchers say.

To mimic the look and texture of real meat, they say plant-based substitutes are usually made by dehydrating plants into a powder and mixing them with seasonings.

These mixtures are then typically heated, moistened, and processed through an extruder to produce plant-based meat, researchers say, adding that these products are often thought to be more nutritious since the plants used to make them are high in protein and low in undesirable fats.

However, researchers say the proteins in substitutes may not break down into peptides as well as those from meats.

In the new study, they analysed the quantity of peptides absorbed from a model meat alternative by human cells and compared this to the amount the cells absorbed from a piece of chicken breast (CB).

For the research, scientists created a model meat alternative (MA) made of soy and wheat gluten with the extrusion process.

When cut open, they say the material had long fibrous pieces inside, just like chicken.

Researchers then cooked pieces of the substitute and chicken meat, and broke them down using an enzyme that humans use to digest food.

They found that peptides and their amino acid building blocks from the meat substitutes were less water-soluble than those from chicken, and were also “not absorbed as well by human cells.”

“The amino acid composition showed fewer essential and non-essential amino acids in the MA permeate than in the CB permeate,” scientists wrote in the study.

They say future studies can help identify ingredients that can help boost the peptide uptake of plant-based meat substitutes.

Indonesia will procure 28.7 million vaccine doses for foot and mouth disease by year-end and limit livestock transportation between regions amid a surge in cases, a senior minister said on Thursday. The country launched a nationwide livestock vaccination programme last week, as the disease has been found in 19 of the country's 34 provinces, with the number of infected livestock growing quickly from 20,000 last month to 232,549 this week. The procurement of 3 million vaccine doses is underway from producers in France, Australia, Brazil and New Zealand, and the government expects to import 16 million doses in the next three months, Hartarto said earlier this week.

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