1
|
San-Emeterio L, Zavala LM, Jiménez-Morillo NT, Pérez-Ramos IM, González-Pérez JA. Effects of Climate Change on Soil Organic Matter C and H Isotope Composition in a Mediterranean Savannah ( Dehesa): An Assessment Using Py-CSIA. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:13851-13862. [PMID: 37682017 PMCID: PMC10515479 DOI: 10.1021/acs.est.3c01816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 09/09/2023]
Abstract
Dehesas are Mediterranean agro-sylvo-pastoral systems sensitive to climate change. Extreme climate conditions forecasted for Mediterranean areas may change soil C turnover, which is of relevance for soil biogeochemistry modeling. The effect of climate change on soil organic matter (SOM) is investigated in a field experiment mimicking environmental conditions of global change scenarios (soil temperature increase, +2-3 °C, W; rainfall exclusion, 30%, D; a combination of both, W+D). Pyrolysis-compound-specific isotope analysis (Py-CSIA) is used for C and H isotope characterization of SOM compounds and to forecast trends exerted by the induced climate shift. After 2.5 years, significant δ13C and δ2H isotopic enrichments were detected. Observed short- and mid-chain n-alkane δ13C shifts point to an increased microbial SOM reworking in the W treatment; a 2H enrichment of up to 40‰ of lignin methoxyphenols was found when combining W+D treatments under the tree canopy, probably related to H fractionation due to increased soil water evapotranspiration. Our findings indicate that the effect of the tree canopy drives SOM dynamics in dehesas and that, in the short term, foreseen climate change scenarios will exert changes in the SOM dynamics comprising the biogeochemical C and H cycles.
Collapse
Affiliation(s)
- Layla
M. San-Emeterio
- Instituto
de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas
(IRNAS-CSIC), Av. Reina
Mercedes 10, 41012 Sevilla, Spain
- Universidad
de Sevilla, MED Soil Res. Group,
Dpt. Cristalografía, Mineralogía y Química Agrícola,
Facultad de Química, C/Prof Garcia Gonzalez 1, 41012 Sevilla, Spain
| | - Lorena M. Zavala
- Universidad
de Sevilla, MED Soil Res. Group,
Dpt. Cristalografía, Mineralogía y Química Agrícola,
Facultad de Química, C/Prof Garcia Gonzalez 1, 41012 Sevilla, Spain
| | - Nicasio T. Jiménez-Morillo
- Instituto
de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas
(IRNAS-CSIC), Av. Reina
Mercedes 10, 41012 Sevilla, Spain
- University
of Évora, Instituto Mediterrâneo
para a Agricultura, Ambiente e Desenvolvimento (MED), Núcleo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Ignacio M. Pérez-Ramos
- Instituto
de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas
(IRNAS-CSIC), Av. Reina
Mercedes 10, 41012 Sevilla, Spain
| | - José A. González-Pérez
- Instituto
de Recursos Naturales y Agrobiología de Sevilla, Consejo Superior de Investigaciones Científicas
(IRNAS-CSIC), Av. Reina
Mercedes 10, 41012 Sevilla, Spain
| |
Collapse
|
2
|
Wang B, Lan J, Ou J, Bo C, Gong B. Ganoderma lucidum bran-derived blue-emissive and green-emissive carbon dots for detection of copper ions. RSC Adv 2023; 13:14506-14516. [PMID: 37188255 PMCID: PMC10176043 DOI: 10.1039/d3ra02168h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/02/2023] [Indexed: 05/17/2023] Open
Abstract
Ganoderma lucidum bran (GB) has a broad application prospect in the preparation of activated carbon, livestock feed, and biogas, but the preparation of carbon dots (CDs) from GB has never been reported. In this work, GB was applied as a carbon source and nitrogen source to prepare both blue fluorescent CDs (BCDs) and green fluorescent CDs (GCDs). The former were prepared at 160 °C for 4 h by a hydrothermal approach, while the latter were acquired at 25 °C for 24 h by chemical oxidation. Two kinds of as-synthesized CDs exhibited unique excitation-dependent fluorescence behavior and high fluorescent chemical stability. Based on the fantastic optical behavior of the CDs, they were utilized as probes for fluorescent determination of copper ions (Cu2+). In the range of 1-10 μmol L-1, the fluorescent intensity of BCDs and GCDs decreased linearly with the increase of Cu2+ concentration; the linear correlation coefficient reached 0.9951 and 0.9982, and the limit of detection (LOD) was 0.74 and 1.08 μmol L-1, respectively. In addition, these CDs remained stable in 0.001-0.1 mmol L-1 salt solutions; BCDs were more stable in the neutral pH range, but GCDs were more stable in neutral to alkaline conditions. The CDs prepared from GB are not only simple and low-cost, but also can realize the comprehensive utilization of biomass.
Collapse
Affiliation(s)
- Baoying Wang
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| | - Jingming Lan
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| | - Junjie Ou
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| | - Chunmiao Bo
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| | - Bolin Gong
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| |
Collapse
|
3
|
Kaur P, Khatri M, Singh G, Selvaraj M, Assiri MA, Lalthazuala Rokhum S, Kumar Arya S, Jones S, Greff B, Woong Chang S, Ravindran B, Awasthi MK. Xylopentose production from crop residue employing xylanase enzyme. BIORESOURCE TECHNOLOGY 2023; 370:128572. [PMID: 36603755 DOI: 10.1016/j.biortech.2022.128572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/30/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
To produce xylo-oligosaccharides (XOS) from the agriculture waste, which included, green coconut and vegetable cocktail. The two pretreatment - hydrogen peroxide-acetic acid (HP-AC) and sodium hypochlorite-sodium hydroxide (SH-SH) - were used for this study. The optimal conditions for the pretreatment were 80 °C, 4.0 % NaClO, and 2 h, followed by 0.08 % NaOH, 55 °C, and 1 h. Further enzymatic hydrolysis of green coconut (GC) and vegetable cocktail (VC) were performed and found in case of GC, the best outcomes were observed. Different types of XOS were obtained from the treated biomass whereas a single type of XOS xylo-pentose was obtained in high quantity (96.44 % and 93.09 % from CG and VC respectively) with the production of other XOS < 2 %. This study presents a reasonably secure and economical method for turning secondary crop residue into XOS and fermentable sugars.
Collapse
Affiliation(s)
- Pritam Kaur
- College of Natural Resources and Environment, Northwest A&F University, TaichengRoad3# Shaanxi, Yangling 712100, China; Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Madhu Khatri
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Gursharan Singh
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Mohammed A Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | | | - Shailendra Kumar Arya
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Sumathi Jones
- Department of Pharmacology, Sree Balaji Dental College and Hospital, BIHER, Chennai 600100, India
| | - Babett Greff
- Department of Food Science, Albert Casimir Faculty at Mosonmagyaróvár, Széchenyi István University, 15-17 Lucsony Street, 9200 Mosonmagyaróvár, Hungary
| | - Soon Woong Chang
- Department of Environmental Energy and Engineering, Kyonggi University, Yeongtong-Gu, Suwon- Si, Gyeonggi-Do 16227, Republic of Korea
| | - Balasubramani Ravindran
- Department of Environmental Energy and Engineering, Kyonggi University, Yeongtong-Gu, Suwon- Si, Gyeonggi-Do 16227, Republic of Korea; Department of Medical Biotechnology and Integrative Physiology, Institute of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai 602105, Tamil Nadu, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, TaichengRoad3# Shaanxi, Yangling 712100, China.
| |
Collapse
|