[Objectives]The paper was to determine the extraction and refining process of polysaccharide from Tricholoma matsutake,and to verify its whitening effect.[Methods]With T.matsutake as the research object,the effects of...[Objectives]The paper was to determine the extraction and refining process of polysaccharide from Tricholoma matsutake,and to verify its whitening effect.[Methods]With T.matsutake as the research object,the effects of eluent concentration,loading amount and diameter-to-height ratio on the refining process of T.matsutake polysaccharide were explored by orthogonal test,to optimize the dynamic elution conditions of T.matsutake polysaccharide.The survival rate of mouse melanoma cells(B16),inhibition of melanin synthesis and inhibition of tyrosinase activity of crude extract A1 and refined extracts A2-A4 were tested to verify the whitening effect of T.matsutake.[Results]The best extraction and refining process for T.matsutake polysaccharide was:eluent 40%ethanol(volume fraction),loading amount 30 mg/g(polysaccharide-resin),diameter-to-height ratio 1∶8.Under this condition,the extraction rate of T.matsutake can reach up to 33%(A3).The whitening efficacy test showed that crude extract A1 and refined extracts A2-A4 had good whitening effects,and the whitening effects were A3≥A4>A1>A2.[Conclusions]The study provides a reference for the application of T.matsutake polysaccharide in cosmetics.展开更多
Two undescribed Tricholoma triterpenoids,namely tricholopardins C(1)and D(2),were isolated from the wild mushroom Tricholoma pardinum.Their structures with absolute configurations were elucidated by spectroscopic meth...Two undescribed Tricholoma triterpenoids,namely tricholopardins C(1)and D(2),were isolated from the wild mushroom Tricholoma pardinum.Their structures with absolute configurations were elucidated by spectroscopic methods,as well as the single crystal X-ray diffraction.Compounds 1 and 2 were further obtained by chemical conversions from the known analogues.Compound 1 showed significant cytotoxicity to MCF-7 and Hela cell lines with IC_(50)values of 4.7μM and 9.7μM,respectively.Its mechanism of inducing MCF-7 cell apoptosis was studied briefly.展开更多
A total of 10 Tricholoma matsutake strains isolated from Yajiang County, Sichuan Province of China were analyzed by using AFLP technique. The results showed that the genetic characteristics of Tricholoma matsutake str...A total of 10 Tricholoma matsutake strains isolated from Yajiang County, Sichuan Province of China were analyzed by using AFLP technique. The results showed that the genetic characteristics of Tricholoma matsutake strains can be properly revealed by AFLP, and among the 10 Tricholoma matsutake strains, the genetic aspects were very similar. At the level of 90% similarity, all the strains collected together, and at the similarity of 92 % , three AFLP groups formed. Simultaneously, the effects of quantity of the primers on the second AFLP PCR were determined. The optimal quantity of Eco +1/Mse+1, Eco + 2/Mse + 2 and Eco + 3/ Mse+3 primer pairs used in the AFLP was 1 pmol/5 pmol, 0. 6 pmol/10 pmol and 0.1 pmol/8 pmol, respectively.展开更多
Three rare triterpenoids,saponaceolides Q–S(1–3),have been isolated from fruiting bodies of the mushroom Tricholoma terreum.Their structures were characterized based on extensive spectroscopic data.Compound 1 showed...Three rare triterpenoids,saponaceolides Q–S(1–3),have been isolated from fruiting bodies of the mushroom Tricholoma terreum.Their structures were characterized based on extensive spectroscopic data.Compound 1 showed certain cytotoxicities against four human tumor cell lines.展开更多
Polysaccharides of Tricholoma matsutake Sing. were extracted with boilingwater, followed by precipitating with ethanol. Two membranes of different molecular weight cut-off, namely, 30 kD and 10 kD were chosen with ult...Polysaccharides of Tricholoma matsutake Sing. were extracted with boilingwater, followed by precipitating with ethanol. Two membranes of different molecular weight cut-off, namely, 30 kD and 10 kD were chosen with ultrafiltration. The antioxidant activity of the purification polysaccharides was evaluated by various antioxidant assay, including DPPH （l,l-diphenyl-2-picrylhydrazyl） radical scavenging, superoxide anion radical scavenging and hydrogen peroxide scavenging. The scavenging effect on hydroxyl radical and DPPH radical, which may be comparable to Vitamin C, while the scavenging effect on superoxide anion radicals was not obvious.展开更多
In order to achieve the transformation from the conventional soil-covering cultivation of Tricholoma giganteum with bags to the soilless cultivation with bottles and understand the mechanism of primordium formation of...In order to achieve the transformation from the conventional soil-covering cultivation of Tricholoma giganteum with bags to the soilless cultivation with bottles and understand the mechanism of primordium formation of Tricholoma giganteum,with Tricholoma giganteum mycelia as experimental materials,this paper studied the effect of different fruiting treatments on the activity of three enzymes in different time.The results showed that from the mycelial recovery to primardial formation and budding under three treatment groups which could form primordium,the tyrosinase activity was relatively stable,and under two treatment groups which could not form primordium,the tyrosinase activity dropped after the rise and reached a maximum on the 9 th day,significantly higher than under the other three groups,indicating that too high tyrosinase inhibited primardial formation; the prolease and amylase activity was effectively activated before primardial formation,and the enzymic activity was significantly higher than under the two treatment groups which could not form primordium.展开更多
Tricholoma giganteum also being called Tricholoma lobayense, belongs to Basidiomycotina, Hymenomycetes, Agaricales, Tricholomataceae and Tricholoma. It has high economic and medicinal values and is a kind of rare edib...Tricholoma giganteum also being called Tricholoma lobayense, belongs to Basidiomycotina, Hymenomycetes, Agaricales, Tricholomataceae and Tricholoma. It has high economic and medicinal values and is a kind of rare edible mushroom. Modern pharmacological studies have shown that T. giganteum have antitumor, antioxidant, antimicrobial and free radicals scavenging activity, and it can inhibit high blood pressure and HIV-1 reverse transcriptase. In this study, the technologies of isolation and purification of polysaccharides of T. giganteum were systematically studied. T. giganteum polysaccharides were obtained by hot-water extraction method. The infection of the extraction temperature, the extraction time, the solvent-solid ratio and the volume of solvent used during precipitation on the polysaccharides extraction ratio were studied. The extraction process was optimized by the uniform design (UD) method on the basis of the results of the single-factor experiments. The optimum extraction conditions of the mushroom polysaccharides (MP) were as follows: Extraction temperature was 100℃;extraction time was 3 hours;solvent-solid ratio was 20:1 and 5 times volume of 95% ethanol. The yield of polysaccharides of T. giganteum was 12.92%.展开更多
Evaluation for human body whitening effcacy of cosmetics with extract from Tricholoma matsutake Sing as main effective constituent was conducted. Thirty female volunteers with age between 20 and 45 years old were kind...Evaluation for human body whitening effcacy of cosmetics with extract from Tricholoma matsutake Sing as main effective constituent was conducted. Thirty female volunteers with age between 20 and 45 years old were kindly invited to use the cosmetic product on the inner side of their crank arm for a testing period of 8 weeks continuously. Values of MI, L＊ and ITA° of the skin were measured and the results display signifcant difference （ P〈0. 05） before and after the 8 weeks testing period. Duncan multiple comparisons showed that the whitening effcacy of cosmetic product formulated with the extract from Tricholoma matsutake Sing is signifcantly greater than that of the formulation matrix and equivalent with that of ascorbyl ethyl ether. Via the data collection and statistical analysis, this method can directly refect the whitening effect of active additives in cosmetics, and it is suitable for the evaluation of the whitening effcacy of cosmetics with additives.展开更多
Microscopical examination demonstrated that Tricholoma giganteum basidia bear 4 basidiospores. Mating tests revealed that T. giganteum has a tetra-polar, heterothallic mating system. New types of factor B (Br) occurre...Microscopical examination demonstrated that Tricholoma giganteum basidia bear 4 basidiospores. Mating tests revealed that T. giganteum has a tetra-polar, heterothallic mating system. New types of factor B (Br) occurred as a result of recombination within the B-type mating factor.展开更多
文摘[Objectives]The paper was to determine the extraction and refining process of polysaccharide from Tricholoma matsutake,and to verify its whitening effect.[Methods]With T.matsutake as the research object,the effects of eluent concentration,loading amount and diameter-to-height ratio on the refining process of T.matsutake polysaccharide were explored by orthogonal test,to optimize the dynamic elution conditions of T.matsutake polysaccharide.The survival rate of mouse melanoma cells(B16),inhibition of melanin synthesis and inhibition of tyrosinase activity of crude extract A1 and refined extracts A2-A4 were tested to verify the whitening effect of T.matsutake.[Results]The best extraction and refining process for T.matsutake polysaccharide was:eluent 40%ethanol(volume fraction),loading amount 30 mg/g(polysaccharide-resin),diameter-to-height ratio 1∶8.Under this condition,the extraction rate of T.matsutake can reach up to 33%(A3).The whitening efficacy test showed that crude extract A1 and refined extracts A2-A4 had good whitening effects,and the whitening effects were A3≥A4>A1>A2.[Conclusions]The study provides a reference for the application of T.matsutake polysaccharide in cosmetics.
基金This work was financially supported by the National Natural Science Foundation of China(81872762)the Hubei Provincial Natural Science Foundation of China(2019CFB387).
文摘Two undescribed Tricholoma triterpenoids,namely tricholopardins C(1)and D(2),were isolated from the wild mushroom Tricholoma pardinum.Their structures with absolute configurations were elucidated by spectroscopic methods,as well as the single crystal X-ray diffraction.Compounds 1 and 2 were further obtained by chemical conversions from the known analogues.Compound 1 showed significant cytotoxicity to MCF-7 and Hela cell lines with IC_(50)values of 4.7μM and 9.7μM,respectively.Its mechanism of inducing MCF-7 cell apoptosis was studied briefly.
文摘A total of 10 Tricholoma matsutake strains isolated from Yajiang County, Sichuan Province of China were analyzed by using AFLP technique. The results showed that the genetic characteristics of Tricholoma matsutake strains can be properly revealed by AFLP, and among the 10 Tricholoma matsutake strains, the genetic aspects were very similar. At the level of 90% similarity, all the strains collected together, and at the similarity of 92 % , three AFLP groups formed. Simultaneously, the effects of quantity of the primers on the second AFLP PCR were determined. The optimal quantity of Eco +1/Mse+1, Eco + 2/Mse + 2 and Eco + 3/ Mse+3 primer pairs used in the AFLP was 1 pmol/5 pmol, 0. 6 pmol/10 pmol and 0.1 pmol/8 pmol, respectively.
基金the National Natural Sciences Foundation of China(U1132607,81102346).
文摘Three rare triterpenoids,saponaceolides Q–S(1–3),have been isolated from fruiting bodies of the mushroom Tricholoma terreum.Their structures were characterized based on extensive spectroscopic data.Compound 1 showed certain cytotoxicities against four human tumor cell lines.
文摘Polysaccharides of Tricholoma matsutake Sing. were extracted with boilingwater, followed by precipitating with ethanol. Two membranes of different molecular weight cut-off, namely, 30 kD and 10 kD were chosen with ultrafiltration. The antioxidant activity of the purification polysaccharides was evaluated by various antioxidant assay, including DPPH （l,l-diphenyl-2-picrylhydrazyl） radical scavenging, superoxide anion radical scavenging and hydrogen peroxide scavenging. The scavenging effect on hydroxyl radical and DPPH radical, which may be comparable to Vitamin C, while the scavenging effect on superoxide anion radicals was not obvious.
文摘In order to achieve the transformation from the conventional soil-covering cultivation of Tricholoma giganteum with bags to the soilless cultivation with bottles and understand the mechanism of primordium formation of Tricholoma giganteum,with Tricholoma giganteum mycelia as experimental materials,this paper studied the effect of different fruiting treatments on the activity of three enzymes in different time.The results showed that from the mycelial recovery to primardial formation and budding under three treatment groups which could form primordium,the tyrosinase activity was relatively stable,and under two treatment groups which could not form primordium,the tyrosinase activity dropped after the rise and reached a maximum on the 9 th day,significantly higher than under the other three groups,indicating that too high tyrosinase inhibited primardial formation; the prolease and amylase activity was effectively activated before primardial formation,and the enzymic activity was significantly higher than under the two treatment groups which could not form primordium.
文摘Tricholoma giganteum also being called Tricholoma lobayense, belongs to Basidiomycotina, Hymenomycetes, Agaricales, Tricholomataceae and Tricholoma. It has high economic and medicinal values and is a kind of rare edible mushroom. Modern pharmacological studies have shown that T. giganteum have antitumor, antioxidant, antimicrobial and free radicals scavenging activity, and it can inhibit high blood pressure and HIV-1 reverse transcriptase. In this study, the technologies of isolation and purification of polysaccharides of T. giganteum were systematically studied. T. giganteum polysaccharides were obtained by hot-water extraction method. The infection of the extraction temperature, the extraction time, the solvent-solid ratio and the volume of solvent used during precipitation on the polysaccharides extraction ratio were studied. The extraction process was optimized by the uniform design (UD) method on the basis of the results of the single-factor experiments. The optimum extraction conditions of the mushroom polysaccharides (MP) were as follows: Extraction temperature was 100℃;extraction time was 3 hours;solvent-solid ratio was 20:1 and 5 times volume of 95% ethanol. The yield of polysaccharides of T. giganteum was 12.92%.
文摘Evaluation for human body whitening effcacy of cosmetics with extract from Tricholoma matsutake Sing as main effective constituent was conducted. Thirty female volunteers with age between 20 and 45 years old were kindly invited to use the cosmetic product on the inner side of their crank arm for a testing period of 8 weeks continuously. Values of MI, L＊ and ITA° of the skin were measured and the results display signifcant difference （ P〈0. 05） before and after the 8 weeks testing period. Duncan multiple comparisons showed that the whitening effcacy of cosmetic product formulated with the extract from Tricholoma matsutake Sing is signifcantly greater than that of the formulation matrix and equivalent with that of ascorbyl ethyl ether. Via the data collection and statistical analysis, this method can directly refect the whitening effect of active additives in cosmetics, and it is suitable for the evaluation of the whitening effcacy of cosmetics with additives.
基金Sponsored by the Foundation of Fujian Province (No .2006S1001and No .2005N034)
文摘Microscopical examination demonstrated that Tricholoma giganteum basidia bear 4 basidiospores. Mating tests revealed that T. giganteum has a tetra-polar, heterothallic mating system. New types of factor B (Br) occurred as a result of recombination within the B-type mating factor.
