Overview
Benthic diatom strains represent a specialized group of microalgae that grow attached to submerged surfaces in aquatic environments. These photosynthetic microorganisms play crucial ecological roles as primary producers in marine and freshwater ecosystems. Commercially, they are cultivated for diverse industrial applications ranging from aquaculture nutrition to environmental biotechnology. Characterized by their intricate silica cell walls (frustules), benthic diatoms exhibit remarkable morphological diversity under microscopic examination. Their ability to thrive in low-light conditions and utilize various nutrient sources makes them particularly valuable for controlled cultivation systems.
Physical and Chemical Properties
Benthic diatoms possess unique physicochemical properties derived from their silica-based cellular structure. The frustule composition typically includes amorphous hydrated silica (SiO2·nH2O) with trace organic components, providing exceptional mechanical strength while remaining lightweight. These microorganisms range from 2-200 microns in size, with density slightly higher than water due to mineral content. Biochemically, benthic strains often contain 20-40% lipids (dry weight), including valuable omega-3 fatty acids. Their photosynthetic pigments (chlorophylls a and c, fucoxanthin) give cultures a golden-brown coloration. Unlike planktonic species, benthic varieties demonstrate stronger adhesion properties through extracellular polymeric substances (EPS) secretion.
Main Applications
In aquaculture systems, benthic diatom strains serve as live feed for larval shrimp, bivalves, and certain fish species, providing essential nutrients and stimulating natural grazing behavior. Their nutritional profile (high protein and lipid content) significantly improves survival rates in hatcheries. Environmental applications include wastewater treatment (nutrient removal) and ecological restoration projects. The silica frustules have industrial potential as natural nanomaterials for filtration media or drug delivery systems. Emerging applications explore their use in biofuel production due to high lipid accumulation under stress conditions.
Safety and Storage
While generally non-toxic, handling concentrated diatom cultures requires standard microbiological precautions. Use personal protective equipment when handling large volumes, as some individuals may develop respiratory or dermal sensitivities to algal particles. For long-term preservation, cryopreservation at -80°C with appropriate cryoprotectants maintains strain viability. Working cultures should be maintained under controlled lighting (50-100 μmol photons/m²/s) with regular subculturing every 2-4 weeks to prevent genetic drift. Always quarantine new strains before introducing them to established culture systems.
B2B Procurement Guide
Commercial buyers should prioritize suppliers with documented strain authentication (morphological and genetic identification). Request certificates of analysis detailing purity (>95% target species), growth rate (doubling time under standard conditions), and absence of bacterial/fungal contamination. Consider production scalability - some benthic strains require specialized substrates for optimal growth. For aquaculture applications, verify nutritional profiles (protein: 30-45%, lipids: 15-30%). Bulk purchases (100+ liters) typically qualify for 15-30% discounts, but ensure your facility can maintain culture viability during transport and acclimation.
Related Manufacturers
- 主营：缓蚀阻垢剂、杀菌灭藻剂、反渗透阻垢剂、除垢剂、粘泥剥离剂、消泡剂、氨氮去除剂、絮凝剂、除油剂、臭味剂、COD去除剂、除锈剂、工业清洗剂、预膜剂、反渗透还原剂、反渗透杀菌剂、反渗透清洗剂、锅炉阻垢剂、聚丙烯酰胺、RO膜还原剂、除氧剂、脱氧剂、反渗透絮凝剂、水处理药剂
- 主营：枸杞粉、黑枸杞粉、食叶草粉、青稞肽、羊睾丸冻干粉、鹿鞭粉、沙棘浓缩汁、牛鞭粉、沙棘冻干粉、蔓越莓冻干粉、猪肾冻干粉、豌豆苗冻干粉、鹿血粉、浒苔粉、蒲公英粉、金银花粉、雷丸粉、鸡内金粉、葵花盘小分子肽
- 主营：阻燃剂、增稠剂、切削液、胶黏剂、钒酸铋、锡酸钠、溴氨酸、蒸馏水、磺酸钙、融冰剂、油酸钠、蛋白胨、聚甘油、芥末油、碳酸镁、桐油酸、硼酸锌、椰油胺、铜铬黑、醋酸钾、泛酸钙、外加剂、堵漏剂、黄原胶、浮选剂
- 主营：杜仲叶粉、杜仲叶黄酮、杜仲叶浓缩粉、杜仲叶提取物、喷雾干燥粉末
- 主营：岩藻多糖、褐藻糖胶、海藻酵素、褐藻提取、明月海藻、岩藻聚糖、海带酵素粉、多糖复合液、多糖硫酸酯、聚糖硫酸酯
- 主营：化妆品原料、保健品原料、功能性食品原料、植物提取物、花青素系列产品
- 主营：生物除臭剂、植物除臭剂、有机物料腐熟剂、小球藻藻种、硝化细菌、反硝化细菌、鸡粪发酵剂、大苏打、好氧菌、厌氧菌、硫代硫酸钠、枯草芽孢杆菌、丁酸梭菌、粪肠球菌、除臭剂、聚合硫酸铁、光合细菌、小球藻
- 主营：植物醇、植物提取物、8-二氨基萘、4-萘二甲酸、8-氨基喹哪啶、聚二羟基吲哚、2-巯基噻唑啉、6-二羟基吲哚氢、磷钼酸、石胆酸、乙烯基膦酸、劳伦酸、二水合钼酸钠、4-辛氧基二苯碘六氟、麦角硫因、DL-樟脑醌、羟乙基磺酸、钼酸、甲基丙烯酸氧杂环丁烷、三羟甲基氨基甲烷盐酸、4-羟乙基哌嗪乙磺酸、5-甲基 N-乙烯基、腺苷、L-谷氨酸-5-叔丁
- 主营：植物提取物、生物多糖、中药材生粉、化妆品原料、保健品/食品原料、日化原料、植物萃取原料、果蔬粉、植物花青素、牡蛎多糖、除虫菊提取物、无患子皂苷、茶叶茶氨酸、酵母葡聚糖、生物多肽、中药材粉、蛇床子素、蛇床子提取物、天然大蒜素、百部提取物、冻干果粉、新资源食品、微囊粉、牛鞭肽、牛脾肽
- 主营：锁阳提取物、荷叶提取物、黄芩提取物、黄芪提取物、红参提取物、枸杞提取物、蒲公英提取物、马齿苋提取物、鱼腥草提取物、皂角提取物、透骨草提取物、菊花提取物、黄柏提取物、饲料添加剂、食品添加剂、植物提取物、黄连提取物、固体饮料、果汁粉粉、栀子苷10%~30%
- 主营：生物菌、强效光、解毒剂、硅藻种、vc解毒灵、发酵em菌、养殖增氧、浓缩复合、全价生物、肥水培养、除氮菌种、生态修复、光合细菌、处理负荷、池塘调水、水草生长、氨氮去除、肥硅藻藻、环保水质、原粉水产、底改水产、光合菌粉、黄芪多糖、净化水质、蓝藻克星
- 主营：藻蓝蛋白、螺旋藻提取物、螺旋藻汁
- 主营：氨氮去除剂、固体次氯酸钠、反渗透阻垢剂、二氯异氰尿酸钠、三氯异氰尿酸钠、二氯、三氯、除磷剂、次氯酸钠、次氯酸钠固体、总氮去除剂、脱色絮凝剂、絮凝剂、重金属捕捉剂、缓蚀阻垢剂、阻垢剂、杀菌灭藻剂、高效粘泥剥离剂、除垢剂、杀菌剂、灭藻剂、污水处理药剂、消毒片、反渗透杀菌剂、消毒杀菌剂
- 主营：刀豆粉、茴香粉、八角粉、浓缩粉、丁香粉、小蓟粉、大枣粉、刀豆提取物、大枣提取物、小蓟提取物、丁香提取物、茴香提取物、八角提取物、喷雾干燥工艺
- 主营：沙棘果粉、蓝莓粉、桑葚粉、黄精提取物、甘草提取物、黄芪提取物、海参肽、人参皂苷多肽、石松粉、板蓝根提取物、黄芩苷提取物、青稞苗粉、桂圆粉、蔓越莓粉、大枣粉、藜麦粉、百合粉、苹果粉、玫瑰花粉、山药粉、淫羊藿提取物、燕麦粉、膳食纤维、大豆异黄酮