Aspergillus oryzae WZ-212 Fermentation for Grapefruit Peel Bioactivity

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Solution Overview

Problem

Current methods for enhancing the α-glucosidase inhibitory activity of grapefruit peel are inefficient, and existing α-glucosidase inhibiting drugs have side effects such as liver and kidney damage, necessitating the development of a more effective and safer natural alternative.

Innovation Solution

The use of Aspergillus oryzae strain WZ-212 for solid fermentation of grapefruit peel, which significantly enhances the α-glucosidase inhibitory activity through a process involving seed culture and subsequent solid fermentation under specific temperature and moisture conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If grapefruit peel is used directly as a natural alternative to α-glucosidase inhibiting drugs, then safety is improved (avoiding liver and kidney damage), but the α-glucosidase inhibitory activity is insufficient

Engineering Contradiction:
ImprovesafetyVSAvoidα-glucosidase inhibitory activity
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent applies parameter changes by altering the chemical composition of grapefruit peel through fermentation. The Aspergillus oryzae strain transforms the peel's chemical parameters, increasing phenolic compounds, flavonoids, and other active components, thereby enhancing α-glucosidase inhibitory activity while preserving the safety benefits of natural origin

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces Aspergillus oryzae as an intermediary organism between grapefruit peel and the final product. This mediator performs biotransformation, converting the peel's components into forms with enhanced biological activity, specifically improving α-glucosidase inhibition without compromising safety

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If fermentation is used to enhance the biological activity of grapefruit peel, then the α-glucosidase inhibitory activity is improved, but the process complexity increases

Engineering Contradiction:
Improveα-glucosidase inhibitory activityVSAvoidprocess complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent employs self-service by utilizing the natural metabolic capabilities of Aspergillus oryzae to perform the fermentation and biotransformation processes. The strain automatically carries out enzyme production, substrate breakdown, and compound transformation without requiring complex external intervention or sophisticated process control systems

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The fermentation process utilizes parameter changes in a controlled manner, adjusting only key variables such as temperature, pH, and incubation time to optimize the biotransformation. This approach enhances inhibitory activity while keeping the process relatively simple by focusing on a few critical parameters

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The process effectively increases the α-glucosidase inhibitory activity of grapefruit peel extract, making it a viable, low-cost, and industrially producible natural alternative to existing drugs, reducing the risk of side effects.

Implementation Method 1

Fermentation is one of the effective ways to enhance plant-derived materials, edible and medicinal fungi can utilize the fiber, carbohydrate, protein and other substances in plant-derived materials during fermentation, wherein the enzymes produced have the effect of breaking the wall to dissolve the active ingredient, and may carry out biotransformation of ingredients in plant-derived materials

Methodology Applied
Scientific EffectFermentation: Fermentation

Data Source

PatentUS12065679B2Aspergillus oryzae and its application
Publication Date: 2024.08.20 WENZHOU UNIV
  • US12065679B2 patent drawing
  • US12065679B2 patent drawing
  • US12065679B2 patent drawing

AI summary

An Aspergillus oryzae and its application belong to the field of microbiology and food processing technology. The present application, on the one hand, provides an Aspergillus oryzae (WZ-212), on the other hand, provides this Aspergillus oryzae in application of enhancing the inhibitory activity of α-glucosidase by grapefruit peel and the method of application. Using the Aspergillus oryzae of this application to treat grapefruit peel, the inhibition of α-glucosidase activity by grapefruit peel extract was significantly enhanced, and the process is simple, low cost, which is easy to achieve industrial production.