Preparation of Matcha Fresh Noodles with Stable Color using Embedding Method and Microwave Treatment

Summary

The protocol describes a method for embedding matcha with whey protein and carboxymethyl chitosan and microwave-treating wheat flour to obtain color-stable matcha fresh noodles.

Abstract

Matcha, as a healthy food additive, has been widely utilized in traditional foods such as noodles, cookies, and bread. However, there are several challenges that must be addressed in the quality of matcha-incorporated foods, with the most significant being the prevention of matcha discoloration. In this study, we introduce a novel approach involving the incorporation of matcha with whey protein (0.08 g/mL) and carboxymethyl chitosan (0.04 g/mL), accompanied by microwave treatment at 700 W for 60 s of wheat flour to produce color-stable matcha fresh noodles. All steps involved in the production process of matcha fresh noodles are presented in the article, including matcha embedding treatment, microwave treatment of wheat flour, kneading the dough, leaving to prove, dividing the dough, rolling out the dough and slicing the sheets by noodle press. The findings revealed a 72.13% reduction in discoloration of fresh matcha noodles following embedding and microwave treatment, compared to untreated fresh matcha noodles. Moreover, the combined process did not have any detrimental impact on the sensory attributes of matcha noodles, including their aroma and taste. Therefore, the novel method proposed in this study holds significant potential for enhancing the color stability of fresh matcha noodles during preparation.

Introduction

Noodles are a staple of traditional grain-based cuisine in China, with approximately 40% of the wheat production in Asian countries being utilized for noodle processing¹. Nevertheless, the basic nutritional component of wheat flour is insufficient to satisfy the increasing nutritional needs of consumers. Therefore, several investigators have opted to replace a portion of the wheat flour in noodles with alternative natural ingredients, such as oat bran², milk protein³, sweet potato⁴, and citrus maxima⁵, in order to enhance the nutritional and function....

Protocol

1. Production of matcha-embedded suspension

1. Place 4 g of carboxymethyl chitosan (see Table of Materials) in 100 mL of distilled water to prepare a 0.04 g/mL of carboxymethyl chitosan stock solution. To dissolve carboxymethyl chitosan heat to 60 °C on constant temperature heating magnetic stirrer.
2. Dissolve 4 g of whey protein (see Table of Materials) in 50 mL of distilled water to prepare a 0.08 g/mL of whey protein stock solution.
3. Aft.......

Discussion

Compared to instant noodles, fine-dried noodles, and other similar products, fresh noodles have a greater capacity to preserve their original taste and flavor, making them highly promising in the market. A previous study has shown that green tea could enhance the overall quality of fresh noodles to a certain degree¹⁶. Therefore, incorporating tea into the flour product system of fresh noodles aims to prioritize both high quality and health benefits, in line with the contemporary trend of promoting.......

Materials

Name	Company	Catalog Number	Comments
Carboxymethyl chitosan	Mackin
Colorimeter	3nh	NH-300+
Dough mixer	ACA	AM-CG108
Freezer	Haier	BCD-252KS
Heating magnetic stirrer	Yuhua	DF-101S
Magnetic stirrer	Keezo	KMS-521D
Matcha	Jinhua Feicui
Microwave	Panasonic	NN-GF351X
NaCl	China National Salt Industry Corporation
Noodle maker	Tianxi	JCD-10
Texture analyzer	Lotun Science	TA-XT plus
Wheat flour	Queen
Whey protein	Yuanye