US 11,952,297 B2Granted

Extract of plant powder, and water purifier

AssigneeDexerials Corporation

InventorsTakanori Fujita, Ryu Shimada, Masahiko Ito, Masato Hasegawa

Life of this patent

Estimating the term…

Loading patent…

Abstract

Provided are an extract, which is a fractionated component 1 of a water extract of a plant powder, wherein the fractionated component 1 is a fractionated component having a fractionation molecular weight of 12,000 or greater, wherein an ethanol-undissolved component of the fractionated component 1 exhibits a peak attributable to carboxylic acid in a Fourier transform infrared spectroscopy (FT-IR) measurement and exhibits a peak attributable to cellulose in a gas chromatography mass spectrometry (GC-MS) measurement, and wherein an ethanol-dissolved component of the fractionated component 1 exhibits a peak attributable to carboxylic acid in the FT-IR measurement and exhibits a peak attributable to a plant protein in the GC-MS measurement, and a water-purifying agent containing the extract.

Claims6

Dependent claims

A production method for an extract, comprising:

grinding a dry plant, and subjecting the resulting ground plant to extraction using ethyl acetate, to obtain an extraction residue, whereby the plant is Corchorus olitorius or mulukhiya,
further subjecting the extraction residue to extraction using distilled water, to obtain a supernatant, and
subjecting the supernatant to dialysis, to separate a component having a fractionation molecular weight of 12,000 or greater which is a fractionated component 1, and a component having a fractionation molecular weight of less than 12,000,
subjecting the component having a fractionation molecular weight of less than 12,000 to dialysis, to obtain a component having a fractionation molecular weight of less than 6,000 and,
further subjecting the component having a fractionation molecular weight of less than 6,000 to dialysis, to separate a component having a fractionation molecular weight of less than 3,400 which is a fractionated component 2.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/177,182Filed 2 Mar 2023 · continuation
Priority: JP 2016-18161916 Sep 2016
Published: US 2023/0242423 A13 Aug 2023
Granted: 9 Apr 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

C02F 1/5263
By flocculation or precipitation of suspended impurities: using natural chemical compounds
B01D 21/01
Separation of suspended solid particles from liquids by sedimentation: using flocculating agents
B01J 20/22
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof:…
B01J 20/24
Comprising organic material: naturally occurring macromolecular compounds, e.g. humic acids or their derivatives

Family

PCT/JP2017/032941Parent of this continuation · filed 12 Sep 2017
US 2023/0242423 A1Pre-grant publication · published 3 Aug 2023
Application16/333,440Parent of this continuation
US 2019/0256387 A1Published application
US 11,952,297 B2This patent

From the US filing history. Foreign family members aren’t listed.