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A kind of comprehensive utilization method of banana waste

A waste and banana technology, applied in the field of bio-energy, can solve problems such as difficulty in storing banana stems, and achieve the effects of prolonging storage time, preventing rotting, and inhibiting the production of miscellaneous bacteria

Active Publication Date: 2019-04-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the current problem of difficult preservation of banana stems, the present invention realizes the rapid growth of lactic acid in banana stems by controlling the moisture content of materials, adding discarded bananas to banana stems, adding lactic acid bacteria and enzyme preparations, and finally realizing the purpose of banana stem preservation

Method used

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  • A kind of comprehensive utilization method of banana waste

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Effect test

Embodiment 1

[0030] The preservation of embodiment 1 banana bar

[0031] 1. Conventional storage methods: Two conventional storage methods for banana stalks are provided, one is to crush and squeeze directly and store them; the other is to adopt the silage method, adjust the moisture content of banana stalks to 65-70%, and seal them Silage handling.

[0032] 2. processing method of the present invention:

[0033] 1) The discarded bananas are mixed with the banana bar according to 4% of the mass of the banana bar and then pulverized to obtain crushed bananas;

[0034] 2) Squeeze the crushed banana obtained in step 1) and control the moisture content of the crushed product at 60%, to obtain the crushed product;

[0035] 3) Add Lactobacillus plantarum and Lactobacillus Brucella mixed in equal proportions, low-temperature amylase and glucoamylase to the squeezed product obtained in step 2) and adjust the water content to 65%. The concentration of lactic acid bacteria is 6×10 6 CUF / g banana ...

Embodiment 2

[0043] This embodiment provides a method for comprehensive utilization of banana waste, the steps are as follows:

[0044] (1) Material pulverization: Banana stem and discarded banana are mixed and crushed, and the ratio of discarded banana to banana stem is 2%;

[0045] (2) Squeeze the pulverized material obtained in step (1), and control the water content to 60%; obtain squeezed waste water simultaneously;

[0046] (3) Squeeze wastewater treatment: use the squeeze wastewater obtained in step (2) for biogas fermentation to obtain biogas;

[0047] (4) Enzyme preparation and lactic acid bacteria are added: evenly spray single plant Lactobacillus, amylase and glucoamylase on the material obtained in step (2); wherein the concentration of lactic acid bacteria is 3×10 6 CUF / g banana stem, the amylase addition amount is 0.1U / g banana stem, the glucoamylase addition amount is 1U / g banana stem; meanwhile, the moisture content of the material is adjusted to 65%.

[0048] (5) Preserv...

Embodiment 3

[0051] This embodiment provides a method for comprehensive utilization of banana waste, the steps are as follows:

[0052] (1) Material pulverization: Banana stem and discarded banana are mixed and crushed, and the ratio of discarded banana to banana stem is 5%;

[0053] (2) Squeeze the pulverized material obtained in step (1), and control the moisture content to 65%; obtain squeezed waste water simultaneously;

[0054] (3) Squeeze wastewater treatment: use the squeeze wastewater obtained in step (2) for biogas fermentation to obtain biogas;

[0055] (4) Enzyme preparation and lactic acid bacteria are added: evenly spray a single Lactobacillus Brucella, amylase and glucoamylase on the material obtained in step (2); wherein the concentration of lactic acid bacteria is 6×10 6 CUF / g banana stem, amylase addition amount is 0.5U / g banana stem, glucoamylase addition amount is 5U / g banana stem; meanwhile, the moisture content of the material is adjusted to 70%.

[0056] (5) Preservat...

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Abstract

The invention discloses a comprehensive utilizing method of banana waste and belongs to the technical field of biological energy. According to the method, banana stalks and abandoned bananas are smashed and pressed to adjust the water content, pressed matter and pressed waste water are acquired, lactic acid bacteria and an enzyme preparation are added into the pressed matter, the pressed matter is preserved after the moisture content is adjusted, and finally, biogas is generated through fermentation of the pressed waste water and the preserved material. Sugar is generated under the action of the enzyme preparation through starch in the waste bananas and provides a carbon source for fast growth of the lactic acid bacteria. A large amount of lactic acid is generated in the growing process of the lactic acid bacteria, pH of the banana stalks is reduced, and the purposes of inhibiting growth of other mixed bacteria and preventing the banana stalks from decaying are achieved. Through the method that waste generated in the banana producing process is comprehensively utilized, the banana stalks are effectively preserved, and a guarantee is provided for large-scale utilization of the banana stalks.

Description

technical field [0001] The invention relates to a comprehensive utilization method of banana waste, belonging to the technical field of bioenergy. Background technique [0002] Banana stalks are the main by-products of banana production, which have the characteristics of high yield per mu, high water content, and perishability. Normally, after bananas are harvested, the banana stalks are directly crushed and returned to the field, or discarded at the head of the field to rot naturally. On the one hand, banana stems will produce a lot of bad smell during the decay process; on the other hand, the microorganisms in the banana stems have the potential to induce yellow leaf disease. Banana yellow leaf disease is highly contagious and will cause a sharp decline in banana production. Once the disease rate in the banana orchard exceeds 30%, it is necessary to reselect new land to plant bananas, which brings great hidden dangers to the production of banana farmers. At present, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P5/02
CPCC12P5/023C12P2203/00Y02E50/30
Inventor 李十中张成明陈雪兰蒋红琴姜立韩娅新李纪红仉磊
Owner TSINGHUA UNIV
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