植物基奎诺亚酸奶的物理化学,营养和抗氧化特性
Qi Wang1, Qianyu Li1, Hong Zhang2
1School of Life Science Shanxi University Taiyuan Shanxi China.
Food science & nutrition
|September 12, 2025
概括
这项研究强调了纯植物酸奶作为一种营养饮料. 使用特定细菌菌株发酵,它提供高蛋白,低糖和增强的抗氧化特性,使其成为健康饮料选择.
科学领域:
- 食品科学 食品科学 食品科学
- 营养生物化学 营养生物化学
- 微生物学 微生物学
背景情况:
- 之前的研究已经建立了一种生产纯植物酸奶的方法,使用Streptococcus salivarius亚种. 热素和乳杆菌delbrueckii亚种. 保加利亚人.保加利亚人.
- 昆酸奶为传统乳制品酸奶提供了潜在的替代品,满足了基于植物的饮食偏好.
研究的目的:
- 为了全面评估植物基子酸奶的物理化学,营养和抗氧化特性.
- 评估发酵对昆酸奶的营养特征和抗氧化能力的影响.
- 确定有助于昆酸奶受欢迎的感官属性和挥发性风味化合物.
主要方法:
- 使用Streptococcus salivarius亚种进行化米草基. 热素和乳杆菌delbrueckii亚种. 保加利亚人.保加利亚人.
- 分析物理化学性质,包括蛋白质,脂肪,总糖和有机酸含量.
- 通过对必需氨基酸和总氨基酸的量化评估营养价值.
- 使用气相色谱-质谱法识别和量化挥发性风味化合物.
- 通过总含量和DPPH激素清除试验评估抗氧化特性.
- 模拟消化研究,以评估含量和抗氧化能力的变化.
主要成果:
- 奎诺亚酸奶获得了高的感官评分 (88.33 ± 1.21) 并被描述为高蛋白 (3.60%),低糖 (17.76 mg/g) 和低脂肪 (2.08%) 的饮料.
- 检测到重要的必需氨基酸 (5.61 ± 0.21 毫克/克) 和总氨基酸 (15.56 ± 0.69 毫克/克) 的水平.
- 生产有机酸,包括乳酸和酸,并确定了41种挥发性化合物,其中2-基是最丰富的 (55.84毫克/100克),有助于独特的香味.
- 观察到总含量增加和DPPH基因清除活性增加 (p < 0.05),表明抗氧化特性增强.
- 模拟消化进一步增加了总和抗氧化能力,表明生物可用性得到改善.
结论:
- 纯植物酸奶是通过特定细菌菌株的发酵而产生的,具有出色的营养和物理化学性质.
- 酸奶具有显著的抗氧化剂潜力,通过模拟消化进一步增强.
- 昆酸奶是一种有价值和健康的无乳制品饮料选择,具有理想的感官特征和改善的营养价值.
相关概念视频
01:17Oxidation of Phenols to Quinones
4.6K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
4.6K
02:35Key Elements for Plant Nutrition
24.0K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.0K
01:28Proteins: Dietary Sources and Requirements
1.6K
Consuming animal-based products offers high-quality proteins that contain optimal levels and combinations of essential amino acids, crucial for tissue repair and growth. Foods like eggs, milk, fish, and most meats are a source of complete proteins. Legumes and cereals are abundant in proteins; however, they typically lack a full range of essential amino acids. As a result, they are considered incomplete protein sources. Some plant sources like soybeans, quinoa, and amaranth do contain complete...
1.6K
01:27Mineral, Vitamin and Water Absorption
1.4K
Electrolytes are essential minerals and ions primarily obtained from the diet and absorbed through the gastrointestinal tract. Most electrolytes are absorbed in the small intestine. While the absorption of iron and calcium primarily occurs in the duodenum, calcium is also absorbed in the jejunum and ileum. In these regions, passive diffusion contributes to its absorption alongside active transport mechanisms in the duodenum. These ions can exit the enterocytes through specialized active...
1.4K
01:22Factors Influencing Drug Absorption: Physicochemical Parameters
820
The physicochemical characteristics of drugs play a crucial role in formulating stable and bioavailable drug products. The solubility of a drug, governed by the varying pH along the GI tract and its dissociation constant (pKa), is pivotal in determining its ionization state and absorption rate. Notably, weak acids and bases remain unionized and are absorbed more rapidly.
Enhanced drug absorption can be achieved by reducing particle sizes and increasing surface areas, thereby facilitating...
Enhanced drug absorption can be achieved by reducing particle sizes and increasing surface areas, thereby facilitating...
820
01:05Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
200
Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
200