Globally, excessive edible oil consumption has become a public health concern. Conventional cooking oils consist of approximately 98% triglycerides (TAG), which are easily stored in subcutaneous tissue, blood vessels, and internal organs after absorption, contributing to obesity, hyperlipidemia, fatty liver disease, and various chronic conditions.

Diacylglycerol (DAG) follows a completely different metabolic pathway — it is not re-synthesized into fat but is directly oxidized for energy, earning it the nickname "fat bomb".

Global Regulatory Recognition:

· 1998: Japan's Ministry of Health, Labor and Welfare classified DAG as a health food ingredient

· 2000: The US FDA granted DAG oil GRAS (Generally Recognized as Safe) status

· 2009: China's Ministry of Health approved DAG oil as a new resource food ingredient

· The European Food Safety Authority (EFSA) has also confirmed the safety of DAG and recognizes its health claims

Regional Market Dynamics:

Demand drivers for DAG vary across different global markets.

In Japan, the mature health food market and high consumer awareness have led to widespread acceptance of DAG oil as a functional cooking oil and health supplement ingredient.

In North America, persistently high obesity rates and strong low-fat, low-calorie dietary trends are driving demand for DAG oil in meal replacement products and healthy cooking oils.

The European market, propelled by trans fat bans, has food manufacturers actively seeking alternatives. With the clean label trend gaining momentum, DAG oil shows strong potential in margarine, bakery fats, and plant-based products.

Southeast Asia, as a major global palm oil producing region, is seeing local companies extend their value chains downstream. DAG oil has become an important direction for functional oil export processing.

In the Middle East, affluent consumers have a strong preference for premium health foods, creating solid growth opportunities for DAG oil in the high-end cooking oil and gift oil segments.

Engineering Challenge: How to Produce DAG Stably and Efficiently?

DAG occurs naturally in very low concentrations in vegetable oils and must be enriched through engineering processes. The mainstream production route is enzymatic transesterification:

Refined oil and glycerol undergo transesterification in a fixed-bed reactor catalyzed by lipase, producing a DAG-containing mixture. The product is then purified through molecular distillation to remove glycerol and free fatty acids, followed by bleaching, deodorization, and winterization filtration to obtain high-purity DAG oil.

Compared to chemical methods, the enzymatic process offers clear advantages:

· Zero trans fatty acid formation

· No wastewater discharge — environmentally friendly

· Mild reaction conditions for superior product quality

Ocean provides full-chain services from process design and equipment manufacturing to installation and commissioning, delivering proven turnkey solutions for the industrial production of Diacylglycerol (DAG) oil . As a global leading turnkey oil processing solutions provider for the edible oil and oleochemical industries worldwide, we tailor every solution to meet the diverse needs of global markets.