The manufacturing process of water hyacinth stems for impact protection is safe from fungi and microorganisms through gamma irradiation.

Abstract

OCR 09WP 27 / 02 / 2569 The manufacturing process of water hyacinth stems for impact protection is safe from fungi and microorganisms through gamma irradiation. It can be produced by irradiating dried water hyacinth stalks with gamma radiation at 0-45 kilograys under atmospheric conditions. Normally, no chemicals or heat are used, and the number of microorganisms, yeast, and mold are reduced after removing the water hyacinth stalks. Impact resistant material was treated with gamma radiation with increasing cumulative doses. Gamma radiation doses of 25 and 45 kilograys were observed. It can reduce the number of microorganisms, yeast, and mold to levels that meet the standards for food contact materials.

Claims

OCR 10KL (21 / 05 / 2569) 1. The production process of water hyacinth stems for impact protection is safe from fungi and microorganisms through gamma irradiation. The steps are as follows: Step A: Preparing dried water hyacinth stems. Select water hyacinth that is at least one year old. Cut off the leaves and flowers, wash thoroughly, and cut into pieces 3-5 cm in size. Dry the water hyacinth stalks in the sun for 1-3 days, then dry them in an oven at 80 degrees Celsius. Step B: Gamma radiation therapy. Take 0.5 - 100 kilograms of dried water hyacinth stalks, pack them in plastic bags or cardboard boxes, and irradiate them. Gamma radiation is delivered at a cumulative dose of 10⁻⁴⁵ kilograys under normal atmospheric or inert gas conditions, using a radiation source. It's a cobalt-60 or cesium-137 rod.

2. A manufacturing process for water hyacinth stems that are safe from fungi and microorganisms using gamma radiation, as follows: Claim 1: Where an inert gas can be selected from nitrogen, argon, or a mixture of gases.

Images