• The Korean Journal of Mycology
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• v.49 no.3
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• pp.425-425
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• 2021

• Journal of Mushroom
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• v.11 no.3
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• pp.137-144
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• 2013

This study was carried out to investigate storage stability of harvested mushroom in developed varieties of button mushroom through identification of quality change during 35 days. The mushroom harvested up to $2^{nd}$ flush mushroom was stored on different storage temperature(4, 7, $10^{\circ}C$) and weight, length, thickness, color of pileus and stipe in fruit body was tested every 7 days. The morphological trait and color of stipe in fruit body were influenced by harvesting period and storage temperature. On the morphological traits of fruit body, mushroom harvested at $2^{nd}$ flush showed smaller difference than those at $1^{st}$ flush and mushroom stored at $4^{\circ}C$ indicated more difference than ones at the other temperature. Mostly color of pileus in brown button mushroom had lower ${\Delta}E$ (color difference) than white mushroom during storage period. The color of pileus of fruit body in white mushroom had low ${\Delta}E$ at $4^{\circ}C$ whereas that of brown mushroom was low at $10^{\circ}C$. The safe period of storage based on the L value is 7 days under a specified environmental condition. 'Seolgang' was stored for 14 days as good quality of mushroom, 'Saedo' had best quality after harvesting and 'Seojeong' was most stable during storage change in white mushroom varieties.

• Journal of Mushroom
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• v.8 no.3
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• pp.116-121
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• 2010

To elucidate the effect of humidity to the characteristics related to mushroom cultivation, five white strains and four brown strains of Flammulina velutipes were cultivated and investigated on their characters. The periods for fruiting initiation, growth and harvest were a little decreased when humidity increased after peak at 75%. Brown strains showed fast fruiting than white ones. ASI 4103 was the fastest and ASI 4166 and ASI 4153 were the latest. The productivity of ASI 4166 and ASI 4149 were the best in all conditions. In general, white strains showed high yields at 75% and brown ones did at 95%. Individual mushroom weight decreased and water content of mushroom increased in most strains when humidity increased.

• Journal of Mushroom
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• v.12 no.4
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• pp.341-349
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• 2014

The composition and content of amino acid and free amino acid were separately compared in cap and stipe of fruitbody obtained from different color strains in winter mushroom and oyster mushroom strains. The result showed different kinds and amount of amino acids according to the mushroom parts, strains and kinds. Tryptophane was not detected in any mushrooms. Alanine was also not detected in all oyster mushroom strains. The content of glutamic acid was the highest and that of methionine, phenylalanine and cysteine were very low in all mushroom strains. When compared by parts, the ratio of amono acids showed similar tendency in composition. Generally the content of amono acids showed higher in caps than in stipes. The profile and content of free amino acid showed a lot of variation between cap and strip in the intra and inter mushrooms.

• Journal of Animal Science and Technology
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• v.47 no.2
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• pp.305-316
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• 2005

This study was conducted to determine the total amount and type of seleniwn (Se) in the Se-enriched mushroom and its spent mushroom composts (SMC), and to investigate the metabolism in relation to Se accwnulation in the mushroom. Mushrooms, Flammulina velutipes, used in this study were grown for 60 days by adding 2 rng of inorganic Se (Na2Se03) per kg of mushroom composts (MC) on as-fed basis and were compared with normal mushrooms grown on the non Se-supplemented Me. Total Se contents for Se-treated mushrooms were significantly increased (P < 0.0001) by 20-fold (4.51 $\mu$/ g of dry) compared to Se-untreated (0.23 $\mu$/ g of dry). On the contrary, organic Se ratio was significantly lower (P < 0.0001) in the Se-treated mushroom (72.3 %) than the Se-untreated one (100 %, not analytically detected of inorganic Se). Se distribution upon a length in the Se-treated mushrooms was the highest in the bottom part (6.86 $\mu$/ g of dry) near to MC, and top and middle parts were significantly lower (3.71 and 3.01 $\mu$/ g of dry, respectively; P < 0.001) than the bottom. In the SMC from Se-treated mushrooms, the significant amount of Se (5.04l1g/g of dry) was remained, but that from the Se-untreated mushrooms was significantly low (P$\mu$ / g of dry. Se-treated SMC showed a high ratio of organic Se (65.67 %), suggesting that the significant amount of inorganic Se in the SMC was converted to organic Se by mushroom mycelia. Prior to mycelia inoculation in the mushroom culture, the sterilization of MC brought approximately 18% of Se loss in the MC. Apparent and net accumulation rates (%) for Se into mushrooms were 14.81 and 10.14 %, respectively, resulting from the Se volatilization into the air via metabolic process of mushroom itself. The result of this study shows that inorganic Se addition to MC for mushroom improved the organic Se contents in the mushroom and SMC. This study showed the possibility that Se in Se-enriched mushroom and SMC could be utilized as Se sources of food for human as well as feed for livestock.

• Journal of Mushroom
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• v.9 no.3
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• pp.123-131
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• 2011

Winter mushroom was monitored to investigate the influence of storage temperature on its quality during the storage and distribution phase. In measuring its quality, the contents of saccharides were quantified with its fruiting bodies using HPLC. Although it has been known to be difficult to separate saccharide isomers, our results indicated that Grace Prevail carbohydrate ES $5{\mu}column$ was the best in the separation to analyze the saccharide out of six columns used in this study. In our results, xylose was the main component of saccharide in the fruiting body of winter mushroom(White line mushroom:47.68mg/g, brown line mushroom: 63.28mg/g). In long-term storage, the total amount of saccharide tended to increase, but trehalose content of the disaccharide decreased. In comparison with the paramount amount of lactose and myo-inositol contents in long-term storage at $4^{\circ}C$, lactose wasn't detected when stored at $-1^{\circ}C$.

• Journal of Mushroom
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• v.5 no.3_4
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• pp.91-97
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• 2007

Shiitake mushroom (Lentinula edodes) is usually cultivated on the oak log. Log cultivation of this mushroom is getting difficult to get oak logs and has a weak point of its long cultivation period. Recently sawdust cultivation is getting increase. It is important to make mycelia browning on the substrate surface. This browned surface in sawdust cultivation plays an important role like as artificial bark of the oak log, which protects the other pests and suppresses water evaporation in the substrate. The period for mycelia browning is so long that the sawdust cultivation of Shiitake mushroom can not spread well into the mushroom farms. The development of methods for the rapid mycelia browning is quite required. In this article we would like to discuss about the enzymatic activities related mycelia browning and search the methods of cultivation period reduction.

• Journal of Mushroom
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• v.11 no.1
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• pp.21-23
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• 2013

We aim at providing consumers and farmers with various parts of mushrooms through development of new mushroom cultivation. For the mass artificial cultivation, we elucidated suitable environment conditions of Neolentinus lepideus. The results were summarized as follows. For the efficient cultivation of N. lepideus, temperature of mycelial growth and development of the fruit body were suitable $20{\sim}23^{\circ}C$ and $20^{\circ}C$, respectively.

• Korean Journal of Organic Agriculture
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• v.19 no.4
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• pp.589-602
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• 2011

In this study, experiments were conducted to determine the effect of different compost teas on plant growth reponses and yield of leaf lettuce. Compost tea is a liquid extract of compost obtained by mixing compost and water for a defined period of time. The pig manure and spent mushroom compost were made by steeping compost in water. Compost tea was aerated from 24 hours and molasses and kelp were added as supplements. The four types of compost were tested growth of lettuce. EC of animal manure compost tea was higher than that of spent mushroom compost tea. Mineral nutrients were significantly higher in animal manure compost tea compared with spent mushroom compost tea. Compost tea contains nutrient and a ranges of different organisms. The beneficial fungi and actinomycetes were prominent in a spent mushroom compost tea. Compost tea from animal manure had the higher numbers of total bacteria. The actinomycetes densities were high in spent mushroom compost tea. But actinomycetes were not founded in animal manure compost tea. The growth characteristics of lettuce in animal manure compost tea were higher than those of spent mushroom compost tea. And also SPAD value in leaf was high in plot treated with animal manure compost tea. The fresh yield of lettuce in animal compost tea was higher by 181% that of control plot. The effect of compost tea on growth of lettuce was largely attributable to mineral nutrient.

• Food Science and Preservation
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• v.9 no.1
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• pp.56-60
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• 2002

Physiological functions of oyster mushroom Kimchi were investigated. Oyster mushroom Kimhies were found to have antioxidant activities. The effect was in a dose-dependent manner, the effect was higher in oyster mushroom Kimchies than in control and higher in raw oyster mushroom Kimchi (ROMK) than in blanched oyster mushroom Kimchi (BOMK). Methanol extract of Kimchi revealed antimutagenic activity and suppressed growth of cancer cell in a dose-dependent manner, and the effects were higher in ROMK than in other Kimchies. The methanol extracts of oyster mushroom Kimchi alone did not appear proliferation effect of spleenic immune cell, but revealed the effect with Con A. The proliferation effect was higher in ROMK than in BOMK.