Bioprospecting of powdered pineapple rind as an organic supplement of composted sawdust for Pleurotus ostreatus mushroom cultivation

Abstract

Pineapple rind is a by‐product of the pineapple processing industry and contains nutrients and other compounds which must be utilized as a bioresource for socio‐economic benefits while preventing the potential problems of improper agroindustrial biomass disposal methods. Pleurotus ostreatus is an edible oyster mushroom with medicinal properties and can be cultivated on various agroindustrial biomass, including sawdust containing supplements. Pineapple rind was powdered and used as a supplement of composted sawdust at 2%, 5%, 10%, 12%, 15%, and 20% (w/w) on dry weight basis. A control treatment consisted of composted sawdust supplemented with rice bran at 12% (the most utilized composition in Ghana). P. ostreatus strain EM‐1 was cultivated on these treatments. Factors investigated included the spawn run period, yield, fruiting body weight and size, biological efficiency, and nutritional composition (proximate composition and Copper, Zinc and Lead content) of fruiting bodies harvested from selected high‐yielding treatments and the control treatment. Full colonization of all treatments occurred by the 34th day of incubation. Enhanced yield, fruiting body weight and size, and biological efficiency were generally recorded with supplementation at lower concentrations (2% and 5%) compared to treatments supplemented at higher concentrations. There was also a supplement concentration‐dependent alteration of the nutritional composition of the mushroom. Powdered pineapple rind can be utilized as an organic supplement at relatively low concentrations in composted sawdust for P. ostreatus strain EM‐1 cultivation. The use of lower concentrations of powdered pineapple rind in composted sawdust is advantageous as relatively less input will be required to produce higher P. ostreatus strain EM‐1 yields. Utilization of pineapple rind for mushroom cultivation will extend the pineapple plant value chain, intensify mushroom production in a sustainable way, and minimize agricultural losses.

Optimization of enzymatic hydrolysis of Pleurotus ostreatus derived proteins through RSM and evaluation of nutritional and functional qualities of mushroom protein hydrolysates

“…Paddy straw has been preferred as the substrate for its financial efficiency and abundance. The nutritional composition, as obtained through proximate analysis, of the mushroom in the current study is compatible with what has been reported by other previous studies who used costlier substrates like pineapple rind (Narh et al, 2018), banana leaves, groundnut shell, cassava and yam peel and sawdust, etc. (Peter et al, 2019) (discussed in details in Section 3.2).…”

“…(Peter et al, 2019) (discussed in details in Section 3.2). Moreover, the growth time for the fruiting bodies has been found to be shorter in the current study (20 days) in comparison to other studies (34 days for pineapple rind (Narh et al, 2018)) though the productivity could have been still maintained.…”

“…Ogundele et al found that moisture content of P. ostreatus harvested from hardwood sawdust was higher (8.93%) than that harvested from softwood sawdust (7.88%) (Ogundele et al, 2017). The moisture content of P. ostreatus evaluated by Tolera and Abera was 8.45 ± 1.65%, which was similar with the experimental finding but on the other hand, Narh et al, reported higher moisture content of P. ostreatus ranged from 10.56 ± 0.12g/100g dw to 10.69 ± 0.02g/100g dw cultivated on composted sawdust supplemented with powdered pineapple ring (Narh et al, 2018;Tolera & Abera, 2017). Narh et al (2018) reported that entire fruiting bodies were sundried, milled and refrigerated at -10 °C.…”

Use of peanut waste for oyster mushroom substrate supplementation—oyster mushroom and peanut waste

“…Depending on the origin of the waste material and on the supplement rate, authors have published different results. Narh Mensah et al [30] obtained biological efficiency of 78.8% using powdered pineapple rind supplement and 65.2% with substrate control. Pardo-Gimenez et al [31] reported biological efficiency of 100.3, 109.8, 126.9, and 127.6%, respectively, for the control substrate (without supplement) and supplemented with a defatted almond meal at a rate of 0.5%, 1.0%, and 1.5%.…”

Mycotherapy of the good and the tasty medicinal mushrooms Lentinus, Pleurotus, and Tremella

“…Pleurotus genus has also been found applicable in the biotransformation of unsaturated terpenoid compounds [38,39]. In Africa, oyster mushrooms are grown mainly on sawdust, with the addition of rice straw [40,41].…”