TY  - JOUR
AU  - Milić, Goran
AU  - Rančić, Milica
AU  - Todorović, Nebojša
AU  - Zivanović, Nemanja
AU  - Orcić, Dejan
AU  - Simin, Natasa
PY  - 2024
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1461
AB  - Steaming of green timber, a common industrial process for various hardwood species, significantly influences wood properties, including coloration and drying characteristics. However, the environmental implications of substantial volumes of condensate generated during wood steaming underscore the urgency for its sustainable management. This study explores the chemical composition of the condensate obtained during the 90-hour indirect steaming of walnut timber (WTSC), aiming to identify potential applications for this wastewater while addressing environmental risks. Chemical characterization of WTSC included qualitative LC-MS/MS analysis, determination of the total phenolic content (TPC), total flavonoid content (TFC) and the content of selected phenolics. WTSC exhibited high TPC (188 mg gallic acid equivalents per L) and TFC (9.74 mg quercetin equivalents per L) values. Additionally, WTSC showed significant antioxidant activity (IC50 (DPPH) = 61.4 mu g/mL and 103 mu g ascorbic acid equivalents per mL in FRAP assay). Specific phenolic compounds detected in the WTSC distinguish it from other wood industry effluents and are a consequence of the unique characteristics of walnut wood and conditions during steaming process. A variety of acids (p-hydroxybenzoic, protocatechuic, syringic, gallic, cinnamic, cinnamic, p-coumaric, o-coumaric, vanillic) and flavonoids (apigenin, genistein, naringenin, luteolin, kaempferol, chrysoeriol, isorhamnetin, apigenin 7-O-glucoside, vitexin, kaempferol 3-O-glucoside, catechin, epicatechin, and quercitrin) were identified and quantified. The condensate exhibited higher TPC value and antioxidant activity than other wood industry effluents, positioning it as a promising natural antioxidant with potential applications in pharmaceutical and food industries. However, our short-term goal is to explore the potential use of WTSC as received - without isolating individual compounds - in studies focused on plant protection, textile dyeing, and wood-based panel production.
T2  - Wood Science and Technology
T1  - Walnut wood steaming: chemical profile and antioxidant activity of the condensate to assess the potential application
EP  - 1628
IS  - 4
SP  - 1605
VL  - 58
DO  - 10.1007/s00226-024-01584-9
UR  - conv_1807
ER  - 

@article{
author = "Milić, Goran and Rančić, Milica and Todorović, Nebojša and Zivanović, Nemanja and Orcić, Dejan and Simin, Natasa",
year = "2024",
abstract = "Steaming of green timber, a common industrial process for various hardwood species, significantly influences wood properties, including coloration and drying characteristics. However, the environmental implications of substantial volumes of condensate generated during wood steaming underscore the urgency for its sustainable management. This study explores the chemical composition of the condensate obtained during the 90-hour indirect steaming of walnut timber (WTSC), aiming to identify potential applications for this wastewater while addressing environmental risks. Chemical characterization of WTSC included qualitative LC-MS/MS analysis, determination of the total phenolic content (TPC), total flavonoid content (TFC) and the content of selected phenolics. WTSC exhibited high TPC (188 mg gallic acid equivalents per L) and TFC (9.74 mg quercetin equivalents per L) values. Additionally, WTSC showed significant antioxidant activity (IC50 (DPPH) = 61.4 mu g/mL and 103 mu g ascorbic acid equivalents per mL in FRAP assay). Specific phenolic compounds detected in the WTSC distinguish it from other wood industry effluents and are a consequence of the unique characteristics of walnut wood and conditions during steaming process. A variety of acids (p-hydroxybenzoic, protocatechuic, syringic, gallic, cinnamic, cinnamic, p-coumaric, o-coumaric, vanillic) and flavonoids (apigenin, genistein, naringenin, luteolin, kaempferol, chrysoeriol, isorhamnetin, apigenin 7-O-glucoside, vitexin, kaempferol 3-O-glucoside, catechin, epicatechin, and quercitrin) were identified and quantified. The condensate exhibited higher TPC value and antioxidant activity than other wood industry effluents, positioning it as a promising natural antioxidant with potential applications in pharmaceutical and food industries. However, our short-term goal is to explore the potential use of WTSC as received - without isolating individual compounds - in studies focused on plant protection, textile dyeing, and wood-based panel production.",
journal = "Wood Science and Technology",
title = "Walnut wood steaming: chemical profile and antioxidant activity of the condensate to assess the potential application",
pages = "1628-1605",
number = "4",
volume = "58",
doi = "10.1007/s00226-024-01584-9",
url = "conv_1807"
}

Milić, G., Rančić, M., Todorović, N., Zivanović, N., Orcić, D.,& Simin, N.. (2024). Walnut wood steaming: chemical profile and antioxidant activity of the condensate to assess the potential application. in Wood Science and Technology, 58(4), 1605-1628.
https://doi.org/10.1007/s00226-024-01584-9
conv_1807

Milić G, Rančić M, Todorović N, Zivanović N, Orcić D, Simin N. Walnut wood steaming: chemical profile and antioxidant activity of the condensate to assess the potential application. in Wood Science and Technology. 2024;58(4):1605-1628.
doi:10.1007/s00226-024-01584-9
conv_1807 .

Milić, Goran, Rančić, Milica, Todorović, Nebojša, Zivanović, Nemanja, Orcić, Dejan, Simin, Natasa, "Walnut wood steaming: chemical profile and antioxidant activity of the condensate to assess the potential application" in Wood Science and Technology, 58, no. 4 (2024):1605-1628,
https://doi.org/10.1007/s00226-024-01584-9 .,
conv_1807 .

TY  - JOUR
AU  - Rančić, Milica
AU  - Popović, Mlađan
AU  - Milić, Goran
AU  - Todorović, Nebojša
AU  - Veizović, Marko
AU  - Gavrilović-Grmuša, Ivana
PY  - 2024
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1494
AB  - This study explores the potential of using condensate generated during beech wood steaming (BSC) as an eco-friendly additive in urea-formaldehyde (UF) adhesives for wood-based panel (WBP) production. The research aimed to assess the hardening behavior of pure commercial UF resin and UF with added condensate (UF-BSC), investigating the potential catalytic effect of BSC on the hardening characteristics of UF adhesives. Changes in chemical structure after the curing process were observed with Fourier transform infrared spectroscopy (FTIR). The curing kinetics was studied by differential scanning calorimetry (DSC) under a dynamic scanning regime with heating rates of 5, 10, and 20 degrees C/min. Obtained data were analyzed using Kissinger-Akahira-Sunose (KAS) and Friedman (FR) kinetic iso-conversional methods to estimate the activation energy (Ea) of the curing reaction in the investigated UF adhesive systems. The results of DSC analysis imply that BSC lowers the temperature of the curing reaction of UF adhesive along with the prolongation of the curing reaction. The obtained kinetic data supported by FTIR and chemical analysis suggest that phenolic compounds present in BSC interfere with the main curing reactions leading to lower peak temperatures but higher activation energy. & Tcy;his suggests that BSC increased the number of active sites involved in the reaction and, consequently, the number of collisions. BSC, as wastewater of the wood processing industry, can be efficiently utilized as an environmentally friendly, inexpensive substitute for deionized water in UF adhesive formulations for WBP manufacturing.
T2  - European Journal of Wood and Wood Products
T1  - The effect of the beech wood steaming condensate on curing behaviour of urea-formaldehyde adhesive
DO  - 10.1007/s00107-024-02151-6
UR  - conv_1827
ER  - 

@article{
author = "Rančić, Milica and Popović, Mlađan and Milić, Goran and Todorović, Nebojša and Veizović, Marko and Gavrilović-Grmuša, Ivana",
year = "2024",
abstract = "This study explores the potential of using condensate generated during beech wood steaming (BSC) as an eco-friendly additive in urea-formaldehyde (UF) adhesives for wood-based panel (WBP) production. The research aimed to assess the hardening behavior of pure commercial UF resin and UF with added condensate (UF-BSC), investigating the potential catalytic effect of BSC on the hardening characteristics of UF adhesives. Changes in chemical structure after the curing process were observed with Fourier transform infrared spectroscopy (FTIR). The curing kinetics was studied by differential scanning calorimetry (DSC) under a dynamic scanning regime with heating rates of 5, 10, and 20 degrees C/min. Obtained data were analyzed using Kissinger-Akahira-Sunose (KAS) and Friedman (FR) kinetic iso-conversional methods to estimate the activation energy (Ea) of the curing reaction in the investigated UF adhesive systems. The results of DSC analysis imply that BSC lowers the temperature of the curing reaction of UF adhesive along with the prolongation of the curing reaction. The obtained kinetic data supported by FTIR and chemical analysis suggest that phenolic compounds present in BSC interfere with the main curing reactions leading to lower peak temperatures but higher activation energy. & Tcy;his suggests that BSC increased the number of active sites involved in the reaction and, consequently, the number of collisions. BSC, as wastewater of the wood processing industry, can be efficiently utilized as an environmentally friendly, inexpensive substitute for deionized water in UF adhesive formulations for WBP manufacturing.",
journal = "European Journal of Wood and Wood Products",
title = "The effect of the beech wood steaming condensate on curing behaviour of urea-formaldehyde adhesive",
doi = "10.1007/s00107-024-02151-6",
url = "conv_1827"
}

Rančić, M., Popović, M., Milić, G., Todorović, N., Veizović, M.,& Gavrilović-Grmuša, I.. (2024). The effect of the beech wood steaming condensate on curing behaviour of urea-formaldehyde adhesive. in European Journal of Wood and Wood Products.
https://doi.org/10.1007/s00107-024-02151-6
conv_1827

Rančić M, Popović M, Milić G, Todorović N, Veizović M, Gavrilović-Grmuša I. The effect of the beech wood steaming condensate on curing behaviour of urea-formaldehyde adhesive. in European Journal of Wood and Wood Products. 2024;.
doi:10.1007/s00107-024-02151-6
conv_1827 .

Rančić, Milica, Popović, Mlađan, Milić, Goran, Todorović, Nebojša, Veizović, Marko, Gavrilović-Grmuša, Ivana, "The effect of the beech wood steaming condensate on curing behaviour of urea-formaldehyde adhesive" in European Journal of Wood and Wood Products (2024),
https://doi.org/10.1007/s00107-024-02151-6 .,
conv_1827 .