用无脂干牛奶丰富的博扎的制备和特征及其对发酵过程的影响
Ezgi Pulatsu1, Sargun Malik2, Mengshi Lin3
1School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1H 8M5, Canada.
Gels (Basel, Switzerland)
|January 22, 2024
概括
这项研究通过添加无脂肪干牛奶 (NFDM) 来增强传统的博扎,显著增加了其蛋白质含量. 最佳10%的NFDM添加导致了成功的发酵和理想的凝状质地.
科学领域:
- 食品科学 食品科学 食品科学
- 发酵技术的发酵技术
- 营养增强剂 营养增强剂
背景情况:
- 博扎是一种传统的,粘性,基于谷物的发酵饮料.
- 它的低蛋白质含量 (<2%) 限制了其营养价值.
- 提高boza的营养特征是可取的.
研究的目的:
- 使用无脂肪干牛奶 (NFDM) 开发一种富含蛋白质的boza.
- 为了确定最佳的NFDM度和发酵时间.
- 描述增强型boza的物理和化学特性.
主要方法:
- 纳入不同度的NFDM (10-40% w/v).
- 通过折射率和pH值监测发酵.
- 风湿学分析和富里埃变换红外光谱 (FTIR) 用于表征.
主要成果:
- 10%的NFDM是最佳的,使得发酵成功而没有过度的初始pH值增加.
- 折射率从21.9降至11.8;pH从5.77降至4.09.
- 增强的boza表现出剪切薄化,固体状和凝状的特性;FTIR差异化产品.
结论:
- 加入10%的NFDM显著增加了boza的蛋白质含量.
- 增强的boza保持了理想的风湿学特征.
- 这种方法为生产更有营养的传统饮料提供了可行的策略.
相关概念视频
Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
Microbes in Beverage Production
Alcoholic beverages such as wine, beer, and spirits are the products of microbial fermentation processes that transform simple sugars into ethanol and a wide array of complex flavor compounds. These transformations rely on the metabolic activities of specific yeasts and bacteria, which are selected and controlled to yield the desired beverage characteristics.Wine Fermentation and MaturationWine production begins with the crushing of grapes to release juice and pulp, forming a must that is...
Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Production of Alcohol
Continuous fermentation is a key strategy in industrial ethanol production, particularly when efficiency, scalability, and high yields are essential. This approach allows for uninterrupted operation and optimized resource utilization. The primary feedstock, corn starch, undergoes enzymatic hydrolysis facilitated by α-amylase and glucoamylase. These enzymes break down the starch into fermentable sugars such as glucose, which are readily assimilated by fermentative microorganisms.Fermentation...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...


