THE LIFE LABORATORY 生命实验室

1.2 THE ENERGY OF LIFE

LIFE IN ACTION

Humanity faces pressing global challenges: clean water scarcity, environmental pollution, energy deficits, and the urgent need to advance medical care and develop novel materials. We can solve these issues through biotechnology.

Biomedicine, biopharmacology, bioremediation, and bioengineering represent the key frontiers in this field. Among these, the microbial synthesis of valuable compounds is advancing with remarkable speed. By harnessing microorganisms, these biotechnologies are accelerating the defeat of diseases and elevating our quality of life.

Can microbial life solve macro-scale challenges? It certainly has the potential.

Let us ascend to the macro-level and see for ourselves!

The Winogradsky Column

The Bioreactor

Invented by Russian microbiologist Sergei Winogradsky in 1888, this device consists of a transparent glass cylinder filled with a nutrient-rich growth medium designed to cultivate diverse microorganisms.

The growth medium is composed of water, natural pond sediment (mud), a carbon source (cellulose), a sulphur source (egg yolk), and calcium carbonate (chalk).

Over time, distinct layers develop within the column, on each of which specific bacterial populations thrive. The arrangement of these layers depends on many factors.

Serves as a model system to study complex microbial communities.

Illustrates intricate ecological connections.

Demonstrates how diverse bacteria coexist.

The earliest primitive bioreactors appeared roughly 7,000 years ago in China, where clay vessels functioned as ancient fermenters utilized to ‘domesticate’ microorganisms and produce food products.

A bioreactor is a highly controlled ‘incubator’ designed to optimize microbial growth by precisely regulating temperature, pH, aeration, and nutrient supply.

Today, approximately 250 companies globally specialize in manufacturing commercial bioreactor systems tailored for scientific research and large-scale industrial biotechnology.

Maintains precise control over temperature, pH, aeration, and nutrient levels.

Synthesizes high-value compounds including antibiotics, insulin, enzymes, and vaccines.

Drives critical bioprocesses like wastewater treatment and biofuel generation.

The Winogradsky Column: A classic tool of microbial ecology and a symbol of fundamental science.

THE FUTURE IS HERE!

Bioreactors: The cornerstone of sustainable aquaculture.

In recirculating aquaculture systems, bacteria eliminate ammonia, solving water pollution challenges and ensuring the well-being of marine life.

Bioreactors manufacture high-value compounds for food technology and cosmeceuticals.

For instance, the German startup BLUU has successfully cultivated rainbow trout and Atlantic salmon cells inside bioreactors – entirely independent of the fish’s body, within a nutrient growth medium.

The bioreactor symbolizes the critical transition from laboratory experimentation to industrial-scale production.

1.2 生命的能量

行动中的生命

人类面临诸多难题: 淡水匮乏、环境污染、能源短缺、医疗水平亟待提升、新材料研发需求。生物技术可以为这些问题提供解决方案。

生物医药、生物药理学、生物修复、生物工程是几大关键方向。微生物合成高价值物质领域发展尤为迅猛。借助微小生物开展的生物技术,助力人类战胜疾病,提升生活品质。

微观生命能否解决宏观尺度难题?至少,正在为之努力。

让我们来到宏观世界,一探究竟!

维诺格拉茨基柱

生物反应器

由俄罗斯科学家谢尔盖·维诺格拉茨基于1888年发明。

这是一个装有微生物培养基质的透明玻璃圆柱体。

培养基质包括:

水、天然水体中的淤泥、碳源(纤维素)、硫源(蛋黄)、碳酸钙(白垩)。

柱体内会形成多个层级,每一层都有细菌种群生长。分层位置受多种因素影响。

用于研究微生物群落

展示生态关联

演示不同细菌的生存方式

・第一批“生物反应器”出现在约7000年前的中国。

陶罐作为发酵容器,用来“驯化”微生物、制作食品。

生物反应器是可控的微生物“培养箱”,可设定温度、酸碱度、营养供给,模拟生产工艺过程。

全球约有250家企业专业生产各类科研与工业用生物反应器

调控温度、酸碱度、通气与营养供给

生产抗生素、胰岛素、酶制剂与疫苗

污水处理、制备生物燃料

维诺格拉茨基柱是微生物生态学的经典工具和基础科学的象征。

未来就在眼前!

生物反应器 —— 可持续水产养殖的基石

循环水养殖系统内部,细菌分解氨,解决水体污染,保障海洋生物生存环境。

生物反应器产出食品工业、化妆品原料。

德国初创企业Bluu在生物反应器的培养基中,于鱼体外培育虹鳟和大西洋鲑的细胞。

生物反应器象征着从实验室实验走向工业化大规模应用。