Preparation method for pecan shell smoke solution with high antibacterial and antioxidant activity

Abstract

The invention discloses a preparation method for a pecan shell smoke solution with high antibacterial and antioxidant activity, and belongs to the technical field of aquatic product processing. The preparation method comprises the following steps: using pecan shells as raw materials, adding the pecan shells and sucrose into a dry distillation device in proportion, performing dry distillation decomposition and smoke cooling to obtain a crude smoke solution, refining the crude smoke solution with ethyl acetate, and removing carcinogens with a macroporous resin to obtain the pecan shell smoke solution with high antibacterial and antioxidant activity. The pecan shell smoke solution prepared according to the method contains 18.1-20.5 mg / mL of polyphenols and 9.5-10.8 mg / mL of carbonyl compounds, and has a pH value of 2.3-2.6; 3,4-benzopyrene is not detected. The pecan shell smoke solution can be applied to aquatic products in two ways, namely, atomizing and soaking, has excellent antibacterial and antioxidant effects, and enables the aquatic products to have rich smoky flavor.

Description

technical field [0001] The invention relates to a method for preparing a food smoked liquid with high antibacterial and antioxidative activity, in particular to the preparation of a food smoked liquid which uses hickory shell wood particles to carry out dry distillation, ethyl acetate refining and macroporous resin to remove carcinogens The method belongs to the technical field of aquatic product processing. Background technique [0002] Aquatic smoked products are favored by consumers at home and abroad because of their unique smoked flavor. Traditionally, the main purpose of using smoke is to prolong the shelf life of aquatic products. Now, in addition to being used for preservation, it is more about the pursuit of the attractive flavor of smoked products. [0003] The traditional smoking method mainly uses smoke produced by slow combustion or incomplete combustion of wood, sawdust, etc., so that aquatic products can lose part of their moisture and be dried. At the same t...

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Problems solved by technology

Although the disclosure of the above-mentioned patent discloses the technical scheme of using hickory nut shells as raw materials to pyrolyze to provide liquid incense, the whole process is relatively complicated, and the content of active ingredients is low, especially containing carcinogen 3, 4-benzopyrene, which is not conducive to Its application in food

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