Hongyue Zhai , Mengyao Qi , Yiming Zhang , Like Mao , Weiming Yang , Penghui Zhou , Chifang Cheng , Keji Yu , Ying Shi , Changqing Duan , Yibin Lan
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引用次数: 0
Abstract
Polysaccharides play a crucial role in wine quality and colloidal stability. Two types of polysaccharides were applied to three wines with diverse initial phenolic and polysaccharide profiles to evaluate their effects on the color characteristics of the wines. Changes in the colloidal properties, phenolic composition, and color parameters of the wines were analyzed over a one-year bottle aging. The results revealed that the addition of polysaccharides consisting mainly of arabinogalactans (AG) tended to have a higher absolute zeta (ζ) potential value (below −10 mV), indicative of enhanced colloidal stability, while mannoprotein (MP) had little effect. However, the addition of both polysaccharides can influence the colloidal particle size and turbidity of the wines, with distinct variations observed based on the initial matrix composition, especially the polysaccharide content. Furthermore, both polysaccharides promoted the formation and accumulation of anthocyanin derivatives, especially pyranoanthocyanin, while AG had a greater effect, with a maximum increase of nearly 14% compared with the control group at 12 M. The color characteristic of the wines changed accordingly, with a significant increase in the red hue (a∗ value), particularly in wines characterized by low polysaccharide content and high polyphenol level. Notably, the modifications in colloidal properties induced by polysaccharide displayed a significant correlation with polyphenols and color parameters, indicating that a stable colloidal system facilitates color stability. In practical winemaking applications, the addition of polysaccharides should consider factors such as their type, concentration, and the balance of the initial wine composition.
期刊介绍:
Food Hydrocolloids publishes original and innovative research focused on the characterization, functional properties, and applications of hydrocolloid materials used in food products. These hydrocolloids, defined as polysaccharides and proteins of commercial importance, are added to control aspects such as texture, stability, rheology, and sensory properties. The research's primary emphasis should be on the hydrocolloids themselves, with thorough descriptions of their source, nature, and physicochemical characteristics. Manuscripts are expected to clearly outline specific aims and objectives, include a fundamental discussion of research findings at the molecular level, and address the significance of the results. Studies on hydrocolloids in complex formulations should concentrate on their overall properties and mechanisms of action, while simple formulation development studies may not be considered for publication.
The main areas of interest are:
-Chemical and physicochemical characterisation
Thermal properties including glass transitions and conformational changes-
Rheological properties including viscosity, viscoelastic properties and gelation behaviour-
The influence on organoleptic properties-
Interfacial properties including stabilisation of dispersions, emulsions and foams-
Film forming properties with application to edible films and active packaging-
Encapsulation and controlled release of active compounds-
The influence on health including their role as dietary fibre-
Manipulation of hydrocolloid structure and functionality through chemical, biochemical and physical processes-
New hydrocolloids and hydrocolloid sources of commercial potential.
The Journal also publishes Review articles that provide an overview of the latest developments in topics of specific interest to researchers in this field of activity.