Flocculant composition of microalgae comprising cellulose nanofibrils and method for flocculating microorganisms and increasing intracellular lipids using the same

• Main Authors: YU, SUN IL, SHIN, HWA SUNG
• Format: Patent
• Language: English; Korean
• Published: 04.04.2017
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BEER; BIOCHEMISTRY; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPINNING; SPIRITS; TEXTILES; VINEGAR; WINE

The present invention relates to a microalgae flocculant comprising cellulose nanofibrils, and a method for flocculating microalgae using the same, wherein the cellulose nanofibrils do not need surface modification such as cation modification, and efficiently flocculate microalgae through a mesh structure of the cellulose nanofibrils. Moreover, the microalgae flocculant comprising the cellulose nanofibrils increases an amount of lipids and hydrocarbon in flocculated microalgae, to economically decrease flocculation costs, thereby being usefully used for flocculating the microalgae, and producing economical oil and biodiesel by using the flocculated microalgae. 본 발명은 셀룰로오스 나노섬유를 포함하는 미세조류 응집제 및 이를 이용한 미세조류 회수방법에 관한 것으로, 본 발명에 따른 셀룰로오스 나노섬유는 양이온 개질과 같은 표면 개질을 필요로 하지 않으며, 셀룰로오스 나노섬유의 망 구조를 통해 미세조류를 효율적으로 응집한다. 또한 응집된 미세조류 내 지질 및 탄화수소 함량을 증가시켜 경제적으로 회수 비용을 감소시킬 수 있으므로 미세조류의 회수에 유용하게 사용될 수 있으며 회수된 미세조류를 이용하여 경제성 있는 오일 및 바이오디젤의 생산이 가능하다.