Preliminary Study of Trace Elements in Wild Macrofungi From Altos De Cantillana, Central Chile

Wild edible mushrooms are very popular for both their flavors and nutritional values. However, some mushroom species can be harmful to human health as they accumulate some elements in excessive amounts. The aim of this study was to determine the concentrations of Al, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, P, Se, and Zn of some wild edible (Agaricus arvensis, A. bitorquis, A. sylvaticus, Amanita vaginata, Armillaria mellea, Clavariadelphus pistillaris, Clitocybe nebularis, Clitopilus prunulus, Hygrophorus marzuolus, H. russula, Lactarius volemus, Lycoperdon molle, and Macrolepiota mastoidea) and non-edible mushroom species (A. citrina, Auricularia mesenterica, Chanterellus melanoxeros, Chondrostereum purpureum, Clathrus ruber, L. controversus, L. helvus, and L. zonarius) collected from Belgrad forest (Istanbul, Turkey). Daily intakes of element (DIE) and health risk index (HRI) values of the edible mushroom species were also calculated. The concentrations of the elements in question were determined to be in the ranges of 9.7-556.8, 2.5-2226.7, 0.06-2.52, 0.03-13.17, 3.74-100.19, 13.3-507.4, 2635.0-28614.0, 493.0-2412.0, 6.97-3150.73, 0.29-13.26, 0.38-3.67, and 9.1-293.8 mg/kg, respectively. The Cd concentration of H. russula (DIE: 1.08, HRI: 1.08), Cr concentration of C. nebularis (DIE: 5.64, HRI: 1.88), and the Cu concentration of M. mastoidea (DIE: 42.94, HRI: 1.07) were above the reference values. The results showed that the long-term consumption of H. russula, C. nebularis, and M. mastoidea collected from Belgrad forest can have a negative impact on human health. Therefore, it was concluded that the element concentrations of edible wild mushrooms in this region should be examined periodically.

Wild edible mushrooms are a valuable dietary food to many tribal people around the world. Wild medicinal mushrooms are therapeutically important sources of bioactive compounds. Tribal groups in Kerala ('Adivasis' of Kerala) are indigenous, ethnic populations that live in the forests and mountains of the Western Ghats, bordering Karnataka and Tamil Nadu. Cholanaikkans, Kurumbas, Kattunaikkans, Kadars, and Koragas are the five primitive tribal groups in Kerala, constituting nearly 5% of the total tribal population in the state. Knowledge on the edibility of mushrooms is mainly based on folk taxonomy and traditional knowledge of indigenous people. Tribal people use some wild mushrooms as sources of food and medicine for various ailments in their communities. Auricularia auriculata, Agaricus bisporus, Boletus edulis, Ganoderma lucidum, Lentinus edodes, and L. squarrosulus are therapeutically important medicinal mushroom species used by the tribal people of Kerala. This article discusses the wild edible and medicinal mushrooms used by different tribal communities in Kerala.

The wonderful world of fungi has always fascinated the human race, by their appearances and characteristic nature. The word mushroom is used for fungi and moulds in French. Since ancient times, mushrooms have been regarded as a special kind of nutritious food. They are diverse in both their growing habitats as well as their medicinal and physiological benefits. Mushroom foraging has been practiced by humans for the same reason. The forest provides large and diverse options to the villagers in the form of varieties of wild edible and non-edible mushrooms. Wild edible mushrooms are very important in the food security of tribal groups throughout Jharkhand. The aim of this study is to produce a prior mushroom checklist based on the collection and document the edible and non-edible mushrooms from Jharkhand state which are collected during the rainy season by tribals for their livelihood.

BackgroundUnion Territory of Jammu and Kashmir (J&K) has a rich tradition of usage of wild edible mushrooms (WEMs) for culinary and medicinal purposes. But very few studies, restricted to some regions of the Union Territory, have been conducted to enlist the WEM. District Jammu has never been explored for WEM. Moreover, the quantification of the traditional knowledge of WEM has not been carried out as yet in J&K. Therefore, the present study was conducted in the Jammu district with the aims of enlisting the WEM and its usage, finding the most used WEM, and enumerating the consensus of usage for a species and associated knowledge.MethodsA total of 192 informants between the age of 25 and 87 years were interviewed. The collected information was organized and arranged based on use reports for quantitative analysis. The cultural importance index (CI) and factor informant consensus (Fic) were calculated to estimate the cultural importance and to test homogeneity of information and knowledge sharing about WEM, respectively. Analysis of variance was used to evaluate the significance of differences in the usage of WEM among different informant categories.ResultsResults of the present study show that the locals were having knowledge of fourteen fleshy fungi that are mainly utilized for culinary purposes. They also stated various medicinal values of some of these fungi. Agaricaceae and Lyophyllaceae were the most used families, and Termitomyces (5 species) was the most represented genus. Based on CI values, Termitomyces sp. (CI 0.57) was the most important and diversely used species. Termitomyces heimii, Termitomyces clypeatus, and Termitomyces striatus var. annulatus were the other culturally important and frequently consumed species by the locals. More than 78.6% of these WEM were new records as culinary and medicinal for J&K (UT). The values of factor informant consensus (Fic) varied between 0.98 (culinary) and 0.76 (skin diseases). Females, elders, and informants who have not attended schools were having significantly (P < 0.05) higher information regarding WEM.ConclusionThe inhabitants of district Jammu had good knowledge of WEM, but no documentation, lying of most of the information with elders and uneducated people, and destruction of forests and other natural habitats of WEM pose a serious threat of losing this valuable information in near future. An ardent need is to educate locals regarding regionally available WEM. Further studies are recommended for developing protocols of cultivation of these WEM so that their future availability is ascertained along with creating income resources for the local population.

Wild edible mushrooms are rich in nutritions and popular among people, but wild edible mushrooms easily accumulate potentially harmful trace elements, and excessive intake will harm health. The aim of this study was to investigate the potential health hazards of long-term intake of wild edible mushrooms in Yunnan Province, China. The concentrations of trace element (As, Cd, Cr, Cu, Hg, Pb, Ni, and Zn) in 19 species of wild edible mushrooms in Yunnan Province were determined by inductively coupled plasma mass spectrometry (ICP-MS). Further processing of the data, the potential health risk assessments of consumers were evaluated by the target hazard quotient (THQ), hazard index (HI), and incremental lifetime cancer risk (ILCR), respectively. Results showed that concentrations of trace element in wild edible mushrooms decreased in the order of Zn > Cu > As > Ni > Cr > Cd > Pb > Hg. Compared with the maximum standard by the WHO/China, the averages of As, Cd, Cr, Hg, and Zn were significantly greater than the standard. Among the tested wild edible mushrooms, HI values of Leccinum crocipodium, Thelephora ganbajun, Lactarius luteolus, Tricholoma matsutake, and Polyporus ellisii were more than 1. Thus, Leccinum crocipodium, Thelephora ganbajun, Lactarius luteolus, Tricholoma matsutake, and Polyporus ellisii are the main sources of risk. The value of THQ in ascending order was as follows: Pb (0.11) < Cd (0.75) < As (4.27) < Hg (6.87). Thus, Hg are the primary sources of health risk in the wild edible mushrooms in Yunnan Province. ILCR(As) values of Thelephora ganbajun, Tricholoma matsutake, Laccaria amethystea, and Polyporus ellisii were more than 10-4, these four samples are the primary sources of health risk. The mean values of ILCR for As in wild mushroom were 1.01 × 10-4. The results suggest that there was potential health risk to the consumer associated with the long-term consumption of wild edible mushrooms collected from Yunnan Province. We propose that the concentrations of trace element should be periodically monitored in wild edible mushrooms.

This study was carried out on nutrient and nutraceutical analysis of wild and cultivated edible mushrooms collected from different parts of Nepal. A total number of five species of mushroom were collected including two wild (Morchella sp. and Ganoderma sp.) and three cultivated species (Pleurotus sp., Agaricus sp. and Lentinula sp). The moisture, protein, crude fat, total ash, dietary fibre and carbohydrates were determined as nutrients whereas phenolic content, flavonoid content, antioxidant and mineral matter were determined as nutraceuticals. In this study, the highest amount of nutrients contained was protein (34%), fat (7%), fibres (42%), ash (11%), and carbohydrate (60%). The nutraceutical in these mushrooms is phenolic (0.79 μg of GAE/gm), flavonoid (0.585 μg of QE/gm) and antioxidant (0.261±0.036 mg/ml). The concentration of iron (26.19 mg/l) was found highest in all mushrooms, whereas lead and chromium were found in negligible amounts i.e., &gt;1. The comparative study revealed that the nutrients in cultivated mushrooms have highest than in wild mushrooms. Moreover, the nutraceutical is maximum in wild mushrooms (phenolic content of 0.79 μg of GAE/gm, flavonoid content of 0.58 μg of GAE/gm) than in cultivated mushrooms. Furthermore, wild edible mushrooms are a good source of antioxidants than cultivated ones. In conclusion, this study suggested that mushrooms are a good source of nutrients and nutraceuticals which are considered valuable good nutritional dietary supplements.

Objective To determine the activity concentration of radionuclides for 137Cs and 40K in edible wild mushrooms,and to evaluate the extent of radioactive contamination and ingestion doses to adults from consumption of these wild mushrooms.Methods A total of 33 samples for 18 edible wild mushroom species were collected from natural forest Mangshi,Yunnan province.The activity concentrations of 137Cs and 40K were analyzed by using high-purity germanium (HPGe) gamma spectrometry.Results Except.for one sample that was below the MDA,137Cs artificial radionuclides were detected in other 32 samples,with activity concentration of 137Cs in the range of 0.45-339.58 Bq/kg (dry weight) and an average of 25.47 Bq/kg (dry weight).In regards to 40K in edible mushrooms,all species presented the activity concentrations for this radionuclide and the levels varied from 453.4 to 1 882.6 Bq/kg (dry weight),with an average of 815.1 Bq/kg (dry weight).After species of mushroom with only one sample were eliminated,there was significant difference for 137Cs(F =21.13,P ＜ 0.05) among 6 species of mushroom named Gomphus floccosus (Schw.) Sing.,Boletus edulis bull,Boletus edulis bull,Tylopllus bolloul (Peck) Sing.,Lentinus edodes (Berk.) Sing.and Boletus brunneissimus W.F.Chin,but without significant difference for 40K.Conclusions These 6 different mushroom species have different capacity to retain radionuclides of 137Cs in soil.These wild mushrooms,such as Gomphus floccosus (Schw.) Sing.and Lentinus edodes (Berk.) Sing.have large affinity ability for radionuclides137Cs.The effective dose to adults attributable to consuming these kinds of mushrooms is small and below the level that could cause harm. Key words: Wild mushroom; 137Cs; 40K; Gamma spectrometry

For millennia, wild edible mushrooms (WEM) had always been considered as substantial food and medicinal sources, for local communities, both Bantu and indigenous peoples. However, few information and sparse data are available on useful mushrooms of Cameroon. A study was undertaken to update the checklist of WEM in humid forests of Cameroon. From mushroom excursions, surveys and inventories, thousand fungal specimens were collected in situ, described and identified using key features and references.&#x0D; Wild edible mushrooms were recruited in three trophic groups. They denoted a dissimilar national biogeographical distribution. Saprophytes and Termitomyces were encountered throughout the country; ectomycorrhizal mushrooms occurred in forest clumps, only in three regions: South, Southeast and Southwest. 117 WEM were listed belonging to 17 families and 43 genera, including nearly 22 Termitomyces, 32 ectomycorrhizal and 63 saprophyte species. 15 WEM were also claimed to have medicinal properties. This vast mushroom diversity related to various specific habitats and ecological niches. Five fungal groups were considered as excellent edible. Amanita and Boletus species were seldom consumed. Most mushroom species were harvested solely for home consumption, with the exception of Termitomyces, the only marketed mushroom. In fine, the diversity of WEM was high but poorly known and valorized. To fulfill the Nagoya convention, it is recommended to pursue mycological inventory of macrofungi in Cameroon, including the use of molecular tools and to cultivate local wild edible saprophyte mushrooms.

Edible wild mushrooms (EWM) are food sources which have high nutritional value. Although they are not the main choice of daily foods in Indonesia, various local communities and mushroom foragers have been consuming EWM for decades, yet without proper documentation. This study aimed to preserve the knowledge of EWM consumption to increase the popularity and public awareness of EWM as alternative food in Indonesia. Data was collected via a structural survey to 50 mushroom hobbyists with range of 18-50 years old and representing several ethnic groups in Indonesia: Javanese, Malay, Sundanese, Banten, and Bugis. Most of the respondents have consumed EWM for more than 5 years, with a frequency of consuming more than once per month, and the knowledge of foraging was obtained from their families. The edible mushrooms were collected mostly after every January and usually consumed by themselves. The location for mushroom seeking and species of EWM mostly were the forests around residence area and Termitomyces spp. (local names: ‘jamur barat’, ‘jamur bulan’, ‘jamur rayap’, ‘jamur trucuk’, ‘jamur sempagi’, respectively). The taste of mushroom was the main reason for forage activity among the hobbyists. They generally consumed all parts of basidiomata and preferred the soft texture of fruiting body. The soup dish was the most preferred by foragers, in contrast to fried cooking type. Most of them distinguish EWM from poisonous mushrooms by observing certain structures basidiomata, however, cases of wild mushroom poisoning have occurred among foragers with low occurrence of frequency. Keywords: Indonesia; edible wild mushrooms; characteristics; mushroom foragers

Proximate compositions and bioactive compounds of edible wild and cultivated mushrooms from Northeast Thailand

Five selected edible wild Australian mushrooms, Morchella elata, Suillus luteus, Pleurotus eryngii, Cyttaria gunnii, and Flammulina velutipes, were evaluated for their antioxidant capacity and mineral contents. The antioxidant capacities of the methanolic extracts of the dried caps of the mushrooms were determined using a number of different chemical reactions in evaluating multi-mechanistic antioxidant activities. These included the Trolox equivalent antioxidant capacity, ferric ion reducing antioxidant power, and ferrous ion chelating activity. Mineral contents of the dried caps of the mushrooms were also determined by inductively coupled plasma-optical emission spectroscopy. The results indicated that these edible wild mushrooms have a high antioxidant capacity and all, except C. gunnii, have a high level of several essential micro-nutrients such as copper, magnesium, and zinc. It can be concluded that these edible wild mushrooms are good sources of nutritional antioxidants and a number of mineral elements.

Key taste components in two wild edible Boletus mushrooms using widely targeted metabolomics

BackgroundMenge District has long been inhabited by people who have a long tradition of using wild mushrooms mainly as food, source of income, and medicine. Extensive utilization of wild edible mushrooms (WEM) coupled with an ever-increasing population growth, deforestation, and agricultural land expansion threatens fungal diversity and WEM in the area. Hence, this study is aimed at documenting and analyzing the ethnomycological knowledge of the people in order to preserve the dwindling WEM wealth and associated indigenous knowledge.MethodsEthnomycological data were collected using semi-structured interviews, focus group discussions, participant observations, and walk-in-the-woods methods. Statistical tests were used to compare the indigenous knowledge and practice of wild mushroom among different informant categories using One-way ANOVA and t tests.ResultsA total of 20 ethnomycologically important wild mushroom species belonging to ten genera and six families were identified, of which 15 were reported to be edible in the District. The family Lyophyllaceae was represented by the highest number of species (nine species, 45%) followed by Agaricaceae (seven species, 35%) and each of the remaining four families had single species representation. Significant difference (P < 0.05) was observed on the mean number of WEM reported among different group of respondents. Wild edible mushroom collection habit and practice was significantly (P < 0.05) influenced by gender, age, and literacy level. The output of preference ranking exercise indicated Termitomyces schimperi was ranked first followed by Termitomyces letestui, Termitomyces microcarpus, and Termitomyces eurhizusas as the most preferred edible mushrooms respectively.ConclusionThe present study shows that Menge District is rich in wild mushroom diversity and associated indigenous knowledge. However, anthropogenic factors together with loss of indigenous knowledge and very poor conservation efforts threaten the survival of economically and ecologically important mushrooms in the area. Thus, complementary in situ and ex situ mushroom conservation strategy is highly recommended.

Wild edible mushrooms are recognized as a fundamental component of forest management and rural development initiatives, offering farmers a substantial supplementary source of income. Thus, exploring the valuable wild mushrooms and modeling fungal fruiting in different forest systems in the tropics could provide additional insight into fungal responses to environmental factors and allow for better decision making related to forest management in the face of climate change. In many parts of the world, edible wild mushrooms are considered economically valuable non-timber forest products (NTFPs). In Ethiopia, forest management policies based on NTFPs are needed to make better use of these resources. A thorough assessment of wild mushroom as NTFPs that occur in Ethiopian forests and their uses is key to understanding what actions are needed to manage forests at the local level. We aimed (1) to record the fresh weight of edible wild mushrooms produced in natural and plantation forests in Ethiopia and (2) to develop models to predict sporocarp production in these two forest systems. We established 63 sample plots of 100 m2. All mature and young edible wild mushrooms were harvested weekly during the main rainy season to quantify their abundance and fresh weight. Composite soil samples collected from each plot and climate data recorded for each study area were used to develop models. In total, 64 edible fungal species were collected. The average annual total fresh weight production in plantations (2097.57 kg ha–1) was significantly greater than that produced in natural forests (731.18 kg ha–1). Six alternative models were fitted, and three yield categories were also defined as possible responses. Latitude, soil organic matter and minimum daily temperature were identified as relevant explanatory factors. Our yield classification models were fitted to predict the annual yields of edible fungi based on climate, soil and area-specific information in Ethiopia. The developed models should serve as a basis for further studies in Ethiopian forests to optimize forest management based on NTFPs, specifically edible wild mushrooms.

Wild edible mushrooms are more popular non timber forest products (NTFPs) which are highly valued as functional food for their medicinal and nutritional benefits. Several wild mushroom species have been pointed out as sources of bioactive compounds, in addition to their important nutritional value. They are the major source of income for the indigenous communities throughout the world. In Bonai Forest Division, Sundargarh, Odisha, survey was conducted during 2021 to 2022 with informants using semistructured interviews and gathered the information about the wild edible mushrooms available in their forest with their marketability. It was observed that the mushrooms play as an excellent source of livelihood for local communities in Bonai Forest Division and these mushrooms are sold in the local markets starting from 10- 20 rupees to 400 rupees. Therefore, the wild edible mushrooms which are available in the state need more exploration. It could be a valuable nutraceutical, making them essential in combating food insecurity. Additional research is needed so that the wild edible mushrooms can be commercialized which can play a key role in the socio-economic upliftment of the tribal people and will add organic food to the urban food basket.