Overview
Microalgae powder is a concentrated, dried form of cultivated microalgae, typically from species like Spirulina, Chlorella, or Dunaliella. It is produced through cultivation in open ponds or photobioreactors, followed by harvesting, drying, and milling. The powder retains the algae’s dense nutritional profile, including proteins, essential fatty acids, and bioactive compounds. As a sustainable biomass, microalgae powder aligns with circular economy principles due to its rapid growth rate and carbon sequestration potential. It is increasingly adopted in industries seeking plant-based or eco-friendly alternatives to traditional raw materials.
Physical and Chemical Properties
Microalgae powder’s properties vary by species but generally exhibit high protein content (40–60% dry weight), with balanced amino acids comparable to animal proteins. Lipids may constitute 10–30%, including omega-3s like EPA and DHA in marine strains. Carbohydrates (10–20%) and pigments (e.g., chlorophyll, phycocyanin) contribute to its functional properties. The powder is hygroscopic and prone to oxidation due to unsaturated fats. Its color ranges from deep green (Spirulina) to golden-brown (Dunaliella), depending on pigment composition. Particle size typically falls between 50–200 microns, affecting solubility and mixing performance in applications.
Main Applications
In nutraceuticals, microalgae powder serves as a vegan protein source or omega-3 supplement in capsules, powders, and functional foods. The aquaculture industry uses it to enrich feed for shrimp and fish, leveraging its amino acid profile and carotenoids for coloration. Biofuel research explores microalgae’s lipid content for biodiesel production, though commercialization remains limited. Cosmetic formulations utilize its antioxidants and anti-inflammatory compounds. Emerging applications include biodegradable plastics and wastewater treatment due to algae’s nutrient uptake capabilities.
Safety and Storage
Microalgae powder is non-toxic but requires strict quality control to avoid contamination by heavy metals (e.g., arsenic in marine strains) or microbial pathogens. Suppliers should provide certificates of analysis for pesticides, aflatoxins, and microbiological safety. Storage in UV-protected, moisture-proof packaging is critical to prevent nutrient degradation. Shelf life typically ranges from 12–24 months under optimal conditions. Bulk buyers should rotate stock to ensure freshness, as oxidized lipids may develop rancidity.
B2B Procurement Guide
Buyers should prioritize suppliers with transparent cultivation practices, such as closed-system photobioreactors for higher purity. Key purchasing criteria include species verification (e.g., DNA testing for Spirulina platensis), organic certification (USDA/EU), and solvent-free processing. Request batch-specific lab reports for protein content, heavy metals, and microbial counts. For large orders, negotiate pricing tiers (e.g., >1 ton) and consider contract farming to stabilize supply. Logistics should avoid high-temperature transit to preserve product integrity.
Related Manufacturers
- 主营：甘氨酸、胍基乙酸、牛磺酸、魔芋粉、可可粉、沙蒿胶、黄原胶、卡拉胶、瓜尔豆胶、半胱氨酸、氨基丁酸、L-精氨酸、食品级亚硫酸氢钠、苯丙氨酸、谷氨酰胺、酪蛋白酸钠、胱氨酸、色氨酸、肌酸、富硒酵母、富铬酵母、氯化胆碱、L-抗坏血酸/vc、亮氨酸、干酪素/酪蛋白
- 主营：亚硒、防腐剂、抗氧化剂、微藻粉、营养强化剂、甜味剂、酸味剂、色素色淀
- 主营：甜菊糖、甘氨酸、阿力甜、cmc淀粉、麦芽粉、栀子红、胺鲜酯、柠檬油、韦兰胶、可可壳、增稠剂、海藻糖、辣椒精、姜精油、独活油、川芎油、海松素、软明胶、酪蛋白、玉米肽、果乳糖、乳制品、龙脑油、牛磺酸、磷酸铁
- 主营：琼脂条、阿尔法、乳化剂、果冻粉、红茶粉、藻油粉、缬氨酸、增味剂、葡聚糖、凉味剂、防腐剂、酪蛋白、补充剂、维生素、牛磺酸、冰淇淋、瓜尔胶、复合酯、氯化钙、调节剂、添加剂、酶制剂、壳寡糖、增稠剂、苹果酸
- 主营：饲料添加剂、豆粕、蛋白饲料、小麦麸皮次粉、猪饲料、鱼虾水产饲料、鸡鸭鹅水产养殖饲料、牛羊马鹿饲料、饲料原料、配合饲料、全价饲料、玉米
- 主营：羟基磷灰石微球、PLLA聚左旋乳酸、燕窝酸、蛋黄球蛋白粉、裸藻粉、腺苷、pdrn、β-乳球蛋白、金属硫蛋白、麦角硫因、吡罗克酮乙醇胺盐、哌嗪、玻色因、依克多因、维C乙基醚、α熊果苷、乙酰基4肽-20、重组三型胶原蛋白、HMB钙、辅酶Q10、阿尔法硫辛酸
- 主营：海藻酸钠、L-精氨酸、黄原胶、魔芋粉、大豆分离蛋白、L-苹果酸、酪蛋白酸钠、脯氨酸、增稠剂、甜味剂
- 主营：木糖醇、牛磺酸、油豆泡、魔芋粉、大豆肽粉、鸡蛋白粉、乳糖酶、瓜尔胶、糕饼面包、谷氨酰胺、蜜饯饮料、饮料蛋糕、柠檬酸钙、饮料增香、剂增香剂、低聚木糖、坏血酸钠、甜菊糖苷、糕点饮料、可得然胶、清凉饮料、山梨酸钾、二钠食品、橙黄色素、烘焙面包