ISOLATION AND PHYSICOCHEMICAL CHARACTERIZATION OF PECTIN FROM NONCONVENTIONAL NATU-RAL RAW MATERIALS

Obtaining and studying the functional properties and determining the subsequent purpose in the practical use of pectin substances requires a thorough study of physical and chemical characteristics of the polysaccharide. By using the acidic hydrolysis method, pectic polysaccharides were isolated from nonconventional raw materials of natural origins - basidial fungus mushrooms Fomes fomentarius, Ganoderma lucidum, Inonotus hispidus, Polýporus squamosus. The polysaccharides isolated were characterized: such as content of free and etherifying carboxyl groups, total -СООН groups, -ОСН3 groups, degree of etherification and by data of the IR-spectroscopy. The pectic polysaccharides isolated in identical conditions from the basidial mushrooms were powders with colors from light yellow to is light-brown by the appearance, possess sub-acidic taste, have no extraneous smack and a smell. The pectin from Inonotus hispidus was much lighter than other pectins (Fomes fomentarius, Ganoderma lucidum, Polýporus squamosus). The pectin’s isolated were similar to the apple pectin by the organoleptic properties. They can classified as averagely etherified pectins regarding the degree etherification. Etherification degree of the studied pectins was in the range of 50.00–66.67%. The methoxyl groups were ranged between 8.47–11.43%. Content of free carboxylic groups in the range of 2.25–5.40%.

A new genus and two new species of melicharid mites (Acari: Mesostigmata) associated with wood-decaying fungi and mycophagous erotylid beetles (Coleoptera: Erotylidae) in Europe

We describe a new genus in the mite family Melicharidae, Mycomelichares Mašán & Joharchi gen. nov., to accommodate two new species, Mycomelichares polypori Mašán & Joharchi sp. nov. and Mycomelichares reductus Mašán & Joharchi sp. nov. on the basis of specimens collected on wood-decaying fungi and/or mycophagous beetles of the genera Triplax Herbst and Tritoma Fabricius (Coleoptera: Erotylidae) in Slovakia and European part of Russia, respectively. Moreover, two previously described Proctolaelaps species—P. cyllodi Samšiňák, 1960 and P. slovacus Mašán, 1998 are transferred to the newly established genus. The new genus is characterized by specific characters in tritosternum (enlarged and brush-shaped, having their laciniae thickened, basaly fused and distally densely pilose), chelicerae (slightly dish-shaped digits with long, narrow and sharp denticles), ventral hypostome (setae h1 enlarged, thickened and distally flattened), setation (tendency towards placement of R series setae on soft integument, and reduction of some setae on idiosoma and legs), and unusual ecological specialisation on fungal substrates. Mycomelichares polypori sp. nov. is adapted to the life in sporophores of the basidiomycete bracket fungus, Polyporus squamosus (Polyporaceae). Mites of this species can be abundantly found on the lower fertile surface of the fungus, including large spore-bearing pores. Furthermore, keys to the melicharid genera reported from Palaearct, and the species of the genus are provided.

EKSPLORASI JAMUR MAKROSKOPIS DI HUTAN OELUAN KABUPATEN TIMOR TENGAH UTARA

Penelitian mengenai keanekaragaman jamur makroskopis di kawasan Hutan Oeluan kabupaten Timor tengah Utara Belum pernah dilaporkan. Penelitian ini telah dilaksanakan pada bulan Januari 2020 dengan letak geografis 9° 2¢ 48" LS- 9° 37¢ 36" LS124° 4¢ 2" BT- 124°46¢ 0" BT, penelitian ini dilakukan pada empat jalur yang berbeda. Panjang jalur pengamatan adalah 100 m. Metode yang dilakuan pada setiap Jalur pemgamatan di setiap adalah metode jelajah dan Purpossive sampling, berdasarkan keberadaan jamur makroskopis yang dianggap mewakili kawasan tersebut, setelah itu dilanjutkan dengan mencatat jumlah individu, koleksi dan dokumentasi. Pengamatan dan pengkoleksian spesies dilakukan secara eksploratif. Dari hasil penelitian ditemukan 9 spesies jamur makroskopis yaitu, Ganoderma aplatum, Earliella scabrosa, Polyporus tenuiculus, Polyporus squamosus, Mikroporus xanthopus, Favolus grammocephalus, Pycnoporus cinnabarinus, Ganoderma lucidium, Laccaria vinaceoavellaneae

INVENTARIS JAMUR KONSUMSI DAN BERACUN DI PERKEBUNAN SAWIT KABUPATEN MUSI RAWAS

Tujuan penelitian mengetahui jenis–jenis jamur yang dapat dikonsumsi dan beracun di PT Bina Sains Cemerlang, Kabupaten Musi. Metode yang digunakan observasi, wawancara, dokumentasi dan eksplorasi kemudian dianalisis secara deskriptif kualitatif. Hasil penelitian menunjukkan jenis jamur yang dapat dimakan yakni Poliotha mutabilis, Coprinus comatus, Schizophyllum commune, Pleorotus ostreatus, Volvarielle volvacea dan Auricularia polytricha. Jenis jamu beracun yakni: Hidnum repandum, Trametes versicolor, Mycena hiemalis, Lentinus conatus, Marasmius remealis, Dacryopinax spathularia, Polyporus squamosus, Pycnoporus annabarinus, Fuligo septica dan Cortinarius sanguenius

Keanekaragaman Jamur di Cagar Alam Gunung Mutis Kabupaten Timor Tengah Utara, Nusa Tenggara Timur

Jamur merupakan salah satu organisme yang memegang peranan penting dalam menguraikan bahan organik yang sangat kompleks menjadi bahan sederhana sehingga mudah diserap oleh organisme lainnya. Tujuan penelitian untuk mengetahui jenis jamur dan mengetahui tingkat keanekaragaman jenis jamur pada hutan cagar alam gunung Mutis. Metode yang digunakan adalah metode jelajah setiap plot dengan mencatat jenis jamur yang ditemukan pada kawasan tersebut dan dilanjutkan dengan proses identifikasi jenis jamur yang ditemukan. Pengambilan sampel dengan koleksi dan dokumentasi. Hasil penelitian menunjukkan bahwa terdapat 340 individu pada 17 spesies jamur dengan tingkat keanekaragaman : 1,510 yang menunjukkan tingkat keanekaragam spesies jamur yang tinggi. Spesies jamur yang paling mendominasi adalah jamur Microporus sp dan Polyporus sp, sedangkan jenis lain keberadaannya masih tergolong rendah seperti Polyporus squamosus, Coriolus hirsutus, Pycnoporus cinnabarinus, Tyromyces sambuceus, Fomytopsis pinicola, Microporus perula, Trametes orientalis, Piptoporus betulinus, Auricula polytricha, Auricularia auricula, Elfvingia applanata, Fomes sp, Laccaria vinaceoavellaneae, Paxillus curtisii, Pleurotus pulmorius.

Polyporus squamosus (Huds.) Fr. in the Black Sea Region

Polyporus squamosus (Huds.) Fr., also named as Aladana, Peri Semeri, Pullu Mantar in varying by localities of Turkey, is an edible wild mushroom species widely existed in the mycobiota of the Black Sea Region. It has not been sold in the local markets. The public recognition of this mushroom may change locally in the Black Sea Region. It is widely consumed by the people in some parts of the region. It is usually appeared in the nature during May-September on the logs, dead and living trunks of the deciduous trees. Following the rainy period, it grows so fast and can produce a few kilograms fruit body within a short period. It is delicious and precious as much as meat for the nutritional value, especially during early growth stage. In this review, general knowledge on the morphological and ecological characteristics, nutritional value and medicinal properties of P. squamosus mushroom and some study results on the domestication of this mushroom have been presented in order to improve the public awareness and its consumption.

Chemical composition and bioactive properties of the wild mushroom Polyporus squamosus (Huds.) Fr: a study with samples from Romania

In Eastern Europe, wild mushrooms are widely collected in mountain areas and used for their medicinal properties or as healthy foods.

Optimization with Response Surface Methodology of biosorption conditions of Hg(II) ions from aqueous media by Polyporus Squamosus fungi as a new biosorbent

Removal of mercury(II) (Hg(II)) from aqueous media by a new biosorbent was carried out. Natural Polyporus squamosus fungus, which according to the literature has not been used for the purpose of Hg(II) biosorption before, was utilized as a low-cost biosorbent, and the biosorption conditions were analyzed by response surface methodology (RSM). Medium parameters which were expected to affect the biosorption of Hg(II) were determined to be initial pH, initial Hg(II) concentration (Co), temperature (T (°C)), and contact time (min). All experiments were carried out in a batch system using 250 mL fl asks containing 100 mL solution with a magnetic stirrer. The Hg(II) concentrations remaining in fi ltration solutions after biosorption were analyzed using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). Based on the RSM results, the optimal conditions were found to be 5.30, 47.39 mg/L, 20°C and 254.9 min for pH, Co, T (°C), and contact time, respectively. Under these optimal conditions, the maximum biosorbed amount and the biosorption yield were calculated to be 3.54 mg/g and 35.37%, respectively. This result was confi rmed by experiments. This result shows that Polyporus squamosus has a specifi c affi nity for Hg ions. Under optimal conditions, by increasing the amount of Polyporus squamosus used, it can be concluded that all Hg ions will be removed