Maillard conjugates from spent brewer's yeast by-product as an innovative encapsulating material

Author(s)

Marson, Gabriela Vollet ^[1] ; Saturno, Rafaela Polessi ^[1] ; Comunian, Talita Aline ^[1] ; Consoli, Larissa ^[1] ; da Costa Machado, Mariana Teixeira ^[2] ; Hubinger, Miriam Dupas ^[1]

Affiliation

^[1] Univ Estadual Campinas, Sch Food Engn, Dept Food Engn, Rua Monteiro Lobato 80, Campinas, SP - Brazil

^[2] Univ Fed Rural Rio de Janeiro, Dept Food Technol, Rodovia BR 465, Km 7, Seropedica, RJ - Brazil

• Document type: Journal article
• Source: Food Research International; v. 136, OCT 2020.
• Web of Science Citations: 0

Abstract

Yeast-based by-products are greatly available, have a rich nutritional composition and functional properties. The spent brewer's yeast (SBY) cells after enzymatic hydrolysis may be a sustainable and low-cost alternative as carrier material for encapsulation processes by spray drying. Our work had as main purpose to characterise the hydrolysed SBY cell debris after the Maillard reaction and to study their potential as a microencapsulation wall material. SBY-based Maillard reaction products (MRPs) were used to encapsulate ascorbic acid (AA) by spray drying. The Maillard Reaction was able to improve the solubility of solids and proteins by 15% and promoted brown color development (230% higher Browning Index). SBY-based MRPs resulted in particles of a high encapsulation yield of AA (101.90 +/- 5.5%), a moisture content of about 3.4%, water activity of 0.15, hygroscopicity values ranging from 13.8 to 19.3 g(H2O)/100 g and a glass transition temperature around 71 degrees C. The shape and microstructure of the produced particles were confirmed by scanning electron microscopy (MEV), indicating very similar structure for control and AA encapsulated particles. Fourier Transform Infrared Spectroscopy (FT-IR) results confirmed the presence of yeast cell debris in the surface of particles. Ascorbic acid was successfully encapsulated in Maillard conjugates of hydrolyzsd yeast cell debris of Saccharomyces pastorianus and maltodextrin as confirmed by optical microscopy, differential scanning calorimetry, MEV and FT-IR. (AU)

• FAPESP's process: 18/04067-6 - Membrane concentration and fractionation of brewer spent yeast protein hydrolysate
• Grantee: Gabriela Vollet Marson
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
• FAPESP's process: 11/51707-1 - Understanding the emulsion behaviour of fermentation mixtures in the microbial production of diesel and jet-like biofuels
• Grantee: Rosiane Lopes da Cunha
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
• FAPESP's process: 15/11984-7 - PRODUCTION OF MICROPARTICLES CONTAINING FAT-SOLUBLE ACTIVE CORES BY ATOMIZATION IN SPRAY DRYING: EFFECT OF EMULSIONS PROPERTIES ON THE CHARACTERISTICS OF THE FINAL PRODUCT
• Grantee: Miriam Dupas Hubinger
• Support Opportunities: Regular Research Grants
• FAPESP's process: 15/24351-2 - Applications of image analyses and NIR spectroscopy for quality assessment and authentication of food products
• Grantee: Douglas Fernandes Barbin
• Support Opportunities: Research Grants - Young Investigators Grants
• FAPESP's process: 06/03263-9 - Process, packaging, edible coatings application and final quality evaluation of some high moisture tropical fruits
• Grantee: Miriam Dupas Hubinger
• Support Opportunities: Regular Research Grants
• FAPESP's process: 16/18465-8 - Membrane concentration and fracionation of brewer spent yeast protein hydrolyzate
• Grantee: Gabriela Vollet Marson
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 11/06083-0 - Emulsification by microchannels
• Grantee: Rosiane Lopes da Cunha
• Support Opportunities: Regular Research Grants
• FAPESP's process: 12/50411-4 - Microencapsulation and agglomeration of mussel meat protein hydrolysate for use as flavoring
• Grantee: Miriam Dupas Hubinger
• Support Opportunities: Regular Research Grants
• FAPESP's process: 09/54137-1 - Acquisition of a particle size/distribution analyzer, a zeta potential measurement system, a spray dryer, and an ultra-high-pressure liquid chromatograph/mass spectrometer
• Grantee: Miriam Dupas Hubinger
• Support Opportunities: Multi-user Equipment Program