Publication

Evaluating Konjac glucomannan as an effective methylcellulose alternative in plant-based burger patties

2025

Abstract

This study investigates konjac glucomannan (KGM) as a more natural substitute to methylcellulose (MC) in plant-based burger patties (PBPs). The novelty lies in the in-situ deacetylation of KGM during PBP production, allowing the use of a natural polysaccharide while achieving MC-like texture in PBPs. Model PBP formulations containing KGM (1–4%, w/w) and various salts (Ca(OH)₂, Na₂CO₃, CaCl₂) were compared to commercial MC-containing counterparts through texture analysis, microstructural imaging, sensory evaluation, and cooking loss measurements. The optimal texture was obtained with 2% KGM and 0.5% Ca(OH)₂, where KGM was highly deacetylated, which may promote interactions with other macromolecules. Microstructural analysis revealed micropores in the hardest KGM-based PBPs, resembling those in MC-containing samples, suggesting the formation of a three-dimensional network possibly contributing to improved texture. Sensory evaluation correlated strongly with instrumental texture measurements, further confirming KGM’s effectiveness. Despite differing molecular mechanisms, KGM (2%) with the addition of salts replicated the textural properties of MC (2%). These findings demonstrate that in-situ deacetylated KGM is a promising natural alternative for enhancing the texture of plant-based meat analogues, offering a natural substitute for MC without compromising quality.

Official source

https://infoscience.epfl.ch/entities/publication/78fc77f8-1fdb-4ac6-a35f-028e92b11d82

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2025

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/78fc77f8-1fdb-4ac6-a35f-028e92b11d82

About this result

Related concepts (32)

Texture mapping

Texture mapping is a method for mapping a texture on a . Texture here can be high frequency detail, surface texture, or color. The original technique was pioneered by Edwin Catmull in 1974. Texture mapping originally referred to diffuse mapping, a method that simply mapped pixels from a texture to a 3D surface ("wrapping" the image around the object).

Penicillin

Penicillins (P, PCN or PEN) are a group of β-lactam antibiotics originally obtained from Penicillium moulds, principally P. chrysogenum and P. rubens. Most penicillins in clinical use are synthesised by P. chrysogenum using deep tank fermentation and then purified. A number of natural penicillins have been discovered, but only two purified compounds are in clinical use: penicillin G (intramuscular or intravenous use) and penicillin V (given by mouth).

Texture (chemistry)

In physical chemistry and materials science, texture is the distribution of crystallographic orientations of a polycrystalline sample (it is also part of the geological fabric). A sample in which these orientations are fully random is said to have no distinct texture. If the crystallographic orientations are not random, but have some preferred orientation, then the sample has a weak, moderate or strong texture. The degree is dependent on the percentage of crystals having the preferred orientation.