GH/T 1460-2024 in English
VALIDTechnical specification for green fermentation of vegetable waste into feed
- Issued on:2024-03-22
- Implemented on:2024-09-01
- File Format:PDF
- Delivery:RFQ
| Standard No: | GH/T 1460-2024 |
| Document status: | VALID |
| Title in English: | Technical specification for green fermentation of vegetable waste into feed |
| Title in Chinese: | 蔬菜废弃物饲料化绿色发酵技术规程 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | RFQ |
| Issued on: | 2024-03-22 |
| Implemented on: | 2024-09-01 |
| ICS Classification: | 67.080.01-Fruits. Vegetables and derived products in general |
| Chinese Classification: | B31-Melon, fruit and vegetable planting and product |
| Related Keywords: | leaf waste ★☆☆☆☆ liquid fermentation ≥70 % pulp waste ★★★☆☆ mixed fermentation
green fermentation fermentation process residue fermentation solid-state fermentation |
Introduction
Technical background and significance of the standard
With the annual output of vegetables in my country exceeding 700 million tons, about 30%-50% of waste is generated in the processing stage. GH/T 1460-2024 systematically regulates the full process technology of converting vegetable waste into feed through microbial fermentation for the first time, achieving a resource recycling rate of more than 40% while reducing methane emissions caused by traditional landfills.
Comparative Analysis of Core Processes
| Fermentation Type | Moisture Content | Applicable Scenario | Energy Consumption Index |
|---|---|---|---|
| Solid State Fermentation | ≤60% | Stem and Leaf Waste | ★☆☆☆☆ |
| Liquid Fermentation | ≥70% | Pulp Waste | ★★★☆☆ |
| Mixed Fermentation | 60-70% | Compound raw materials | ★★☆☆☆ |
Key quality control points
Lactic acid bacteria viable count control
The standard requires that the viable lactic acid bacteria count of the final product is ≥1×107 CFU/g. Actual cases show that:
- When cabbage waste is fermented, Lactobacillus plantarum CICC 20261 is inoculated, and the viable count can reach 3.2×108 CFU/g in 72 hours
- Tomato residue fermentation requires the addition of 2% molasses as a carbon source supplement, otherwise the viable count will drop by 40%
pH dynamic monitoring
Through class=instrument>Online pH monitor tracks the fermentation process in real time. When the pH value drops to the range of 3.5-4.5:
- Solid-state fermentation requires turning the pile 1-2 times/day
- Liquid fermentation requires maintaining a stirring speed ≥50rpm
Implementation suggestions
Equipment selection plan
Recommended configuration for enterprises of different sizes:
| Production scale | Core equipment | Investment budget |
|---|---|---|
| Small (＜1 ton/day) | Breathing bag + handheld pH meter | ＜50,000 yuan |
| Medium (1-5 tons/day) | Fermentation tower + automatic temperature control system | 150,000-300,000 yuan |
Risk prevention and control measures
Special attention should be paid to:
- Leafy vegetable waste should be pre-treated within 24 hours to prevent nitrite accumulation
- Melon and fruit waste should be tested for pesticide residues before fermentation, referring to GB 2763 standard
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