(2) The handle of Russula is solid. Pay attention to rubbing it with your hands when you buy it to see if the stem (the part below the umbrella cover) is strong.
(3) The center of the top of the umbrella cover of Russula is dark red or dark purple, which is slightly darker than the color around the umbrella cover.
(4) When soaked in water, the russula will fade, but the color will be uneven when it is scattered, and the color of water will change slowly.
(5) Red mushroom soup is sweet and delicious, and the soup is also sweet. Red mushroom soup is sweet, but the mushroom itself is slightly astringent.
Experiment 1: Soaking in water
Experimental samples: Ms. Lin's russula (hereinafter referred to as sample A), Ms. Wang's russula (hereinafter referred to as sample B) and Mr. Deng's russula (hereinafter referred to as sample C).
Experimental content: soak in cold water and observe the changes of the three.
Experimental steps: Put three samples into a small beaker and soak them in water for half an hour.
Experimental change: just after soaking, put in the water of sample A, and the color slowly turns rosy; Add water from sample B, and the color will turn brown; When the water in sample C is put in, the color change is consistent with that in sample A. ..
Soak it for about 20 minutes and put it in the water of sample A, which has a little musty smell and a gap in the middle of the stem of sample A; The water in which sample B is put smells faint and fragrant; The water containing sample c smells clear.
After soaking for 30 minutes, the stem of sample A faded slightly. The handle and umbrella cover of sample B are faded, and the color changes greatly before and after soaking. After soaking in sample C, although it faded, the stalk and umbrella surface still had obvious red color.
Experimental conclusion: Although water will be dyed red after being soaked by Lentinus edodes, the dissolution rate of red in water is very slow, and all its own red can still be clearly seen after being soaked.
Experiment 2: Dyeing identification method
Experimental materials: Sample B, dried mushrooms to be dyed and basic fuchsin.
Experimental purpose: By comparing artificially dyed mushrooms with sample B, we can check whether sample B is dyed mushrooms.
Experimental steps: (1) Pour basic fuchsin into water and dilute it, and prepare a proper proportion of dye.
(2) Put the dried mushrooms to be dyed into the prepared dye and dye for 20 minutes.
(3) Take the lecherous mushrooms out of the dye and put them into a hair dryer for drying.
(4) Compare the soaking reaction between artificially dyed mushrooms and experimental sample B. ..
Experimental conclusion: By comparing the reaction of dyed mushrooms with sample B after soaking in water, it can be found that the color of dyed mushrooms is evenly dispersed after soaking in water, and there is no color precipitation at the bottom of the water. This reaction is different from that of sample B after soaking in water. And sample B gives off a pleasant fragrance after soaking, without peculiar smell.