在微重力和黑暗中生长的布拉西卡芽中生物活性化合物的积累:功能性食品的新方法
Marta Markiewicz1, Agnieszka Galanty2, Agata Kołodziejczyk3
1Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, Łazarza 16, 31-530, Cracow, Poland; Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland.
Food chemistry
|June 28, 2025
概括
微重力和黑暗大大增加了布拉西卡芽中的有益化合物,增强了它们作为功能性食物的潜力. 在这些条件下,科拉比芽显示出最强大的抗氧化活性.
科学领域:
- 植物科学 植物科学
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
背景情况:
- 芽含有丰富的生物活性植物化学物质,使它们成为功能性食品的有价值.
- 了解植物对微重力等极端条件的反应,对于太空农业和新型食品开发至关重要.
研究的目的:
- 研究微重力和黑暗对布拉西卡苗的生长和生物活性化合物合成的影响.
- 为了评估在模拟空间条件下种植的芽的抗氧化潜力.
主要方法:
- 在受控的微重力和黑暗条件下种植布拉西卡芽 (西兰花,胡卜,胡卜,布鲁塞尔菜).
- 关键生物活性化合物的定量,如酸,多和硫化合物.
- 使用Fe2+合法测定抗氧化活性.
- 对氨氨酸氨酶和P450.0细胞染色体的酶活性测定.
主要成果:
- 微重力使芽中的酸水平增加了50-80%.
- 微重力和黑暗的结合导致多化合物 (西兰花) 的增加2倍,硫化合物 (kohlrabi) 的增加3倍.
- 科拉比芽表现出最高的抗氧化活性 (6.4823.30 μM Fe2+/100 g dw),增强了微重力和黑暗.
结论:
- 微重力和黑暗显著影响布拉西卡芽的植物化学合成和抗氧化特性.
- 在模拟的太空条件下,科拉比芽显示出卓越的抗氧化能力,突出显示了它们对功能性食品应用的承诺.
- 该研究将增加的生物活性化合物水平与关键生物合成酶的增强活性相关联.
相关概念视频
Microorganisms in Agriculture and Food industry
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
Biological Methods for Microbial Control
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
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...
Microbial Spoilage of Food
Microbial food spoilage refers to the degradation of food quality resulting from the metabolic activity of microorganisms such as bacteria, yeasts, and molds. These microbes proliferate on various food substrates depending on factors such as moisture content, nutrient availability, and storage conditions, leading to undesirable sensory and structural changes.Bacteria are primary agents of spoilage in high-moisture, nutrient-dense foods like meat, milk, and vegetables. Microbial spoilage occurs...
Production of Biopesticides
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...


