A dark coffee composition containing l-carnitine and a method for preparing the same

By encapsulating L-carnitine particles in composite wall materials, the problems of moisture absorption, clumping, and stratification of L-carnitine in black coffee beverages were solved, achieving particle size matching and taste coordination, and improving the stability and palatability of the product.

CN122439752APending Publication Date: 2026-07-24JIANGI WENIR NUTRITION HIGH TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGI WENIR NUTRITION HIGH TECH
Filing Date
2026-06-23
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

L-carnitine in existing black coffee solid beverages is prone to moisture absorption, clumping, layering, and uneven dispersion, affecting product quality stability and taste. Furthermore, traditional encapsulation methods have failed to effectively solve the problems of particle size matching and taste coordination.

Method used

L-carnitine was encapsulated using a composite wall material. Resistant dextrin, arabinoxylan, and pullulan were used to form encapsulated L-carnitine particles. Through spray drying and secondary granulation in a fluidized bed, particles with controllable size and good flowability were formed, reducing the risk of hygroscopicity and clumping, and improving mixing uniformity and reconstitution stability.

Benefits of technology

It improves the problems of moisture absorption, clumping and layering of L-carnitine in black coffee compositions, enhances mixing uniformity and brewing stability, and improves dietary fiber properties and taste harmony.

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Abstract

The present application relates to the technical field of coffee, and discloses a black coffee composition containing L-carnitine and a preparation method thereof. The composition comprises 35-55 parts of freeze-dried black coffee powder, 10-20 parts of malt dextrin, 15-25 parts of resistant dextrin, 6-12 parts of polydextrose, 1-5 parts of vegetable fat powder, 2-7 parts of embedded L-carnitine particles, and 0.01-0.05 parts of sweetening agent. The embedded L-carnitine particles are prepared by embedding L-carnitine with a composite wall material and then performing secondary granulation in a fluidized bed. The present application can reduce the risk of moisture absorption, caking and delamination of L-carnitine when directly added, improve the mixing uniformity, brewing dispersibility of L-carnitine in the black coffee composition, and improve the powder stability of L-carnitine in a high-humidity environment, and also improve the taste coordination and dietary fiber properties of the product.
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