Preservation of fruit and vegetable discards with sodium metabisulfite

A Comparative Study on Conversion of Soluble Cr(VI) into Insoluble Cr(VI) and Reduction of Cr(VI) in Contaminated Groundwater at COPR Dump Site

“…X-ray diffraction analysis (Fig. 4) for the precipitated zinc chromate contains diffraction pattern of zinc chromate peaks at 2θ values 32, 45 and 57 and it matches well with the reported value [15]. Conversion of soluble Cr(VI) into insoluble Cr(VI) in CGW using BaCl2: Attempts were made to find out the suitability of BaCl2 for conversion of BaCrO4.…”

“…Beyar and Rieman [14] have reported that a solution containing barium and strontium is separated into barium chromate and strontium chromate by double precipitation. Sodium meta sulfite is a cheap, easily available reducing agent, safe to handle and used as preservative for fruits [15].…”

Fruit and vegetable discards preserved with sodium metabisulfite as a high-moisture ingredient in total mixed ration for ruminants: effect on in vitro ruminal fermentation and in vivo metabolism

“…The blends were transferred to buckets (120 L capacity) and kept outdoors (shaded area) under aerobic exposure for seven days. The 7-day aerobic preservation was selected based on our previous on-site survey in the packing house where FVD is accumulated onsite and transported to the recycling center typically within a week [6]. The FVD after aerobic exposure were minced using a meat grinder to minimize differences in particle size and to provide homogenous mixing with TMR ingredients.…”

“…After the harvest of supernatant, the residual solids were re-extracted three more times with the same pro-cedure. The total phenolic content of the supernatant was quantified using the Folin-Ciocalteu reagent, as previously described in detail [6]. For quantifying the 2, 2-diphenyl-1picrylhydrazyl (DPPH) free radical-scavenging activity, a portion of the supernatant (100 μL) was reacted at room temperature with 3.9 mL of the methanolic solution of 60 μM DPPH • .…”

“…Although a number of studies attempted to use FVD as a feed ingredient in animal diet [5], FVD is a relatively new class of feed ingredient potentially rich in vitamins, minerals, and phytonutrients which may provide additional benefits for animals beyond a simple feed ingredient. According to the experimental data obtained over two years in our laboratory [6,7], FVD is high in moisture (85% to 88%) and soluble sugars (44% to 63%; dry matter [DM] basis), which speed up the microbial deterioration and therefore causes environmental problems [6,7]. Mixing FVD with dry feeds to achieve appropriate moisture content, facilitates the storage and handling, minimizes the effluent loss, and decreases the costs related to drying and transportation of high-moisture feedstocks [8].…”