Food Products Research Articles

Health Risk Assessment of Exposure to Heavy Metals in Wheat Flour from Iran Markets: Application of Monte Carlo Simulation Approach.

The significance of flour in the Iranian diet underscores the need to ensure its safety from chemical pollutants. This study aimed to evaluate the potential health risks posed by certain heavy metals, such as Fe, Zn, Cu, Al, Co, Hg, Cr, Ni, Pb, and Cd, in wheat flour available in the Iranian market. A total of 248 flour samples were collected from 11 provinces in Iran during the winter of 2021. The health risks associated with heavy metals in children and adults were evaluated using USEPA health risk assessment guidance for superfund part A and Monte Carlo Simulation. The average concentration of Fe, Zn, Cu, Al, Co, Hg, Cr, Ni, Pb, and Cd, was equal to 30.62 ± 59.24, 4.94 ± 13.64, 1.24 ± 3.08, 2.85 ± 4.98, 0.03 ± 0.01, 0.12 ± 0.03, 1.42 ± 1, 0.23 ± 0.05, 1.71 ± 0.65, and 0.02 ± 0.004mg/kg dry weight, respectively. Analysis of Fe, Cr, Al, Hg and Cr in all flour samples showed that the average concentration of these metals were greater than the standards levels set by the WHO/FAO. The results of the non-carcinogenic risks (HI) showed that the hazard index values (children: 0.969 ± 1.04, adult: 0.837 ± 0.905) of heavy metals through the consumption of flour to both study population were acceptable. The results of the carcinogenic risks (CR) based on Cd, and Pb concentration showed that the CR values from ingestion of flour to the children and adults population were 1.45 × 10-5 ± 5.08 × 10-5 and 1.26 × 10-5 ± 4.40 × 10-5, respectively. The results of Monte Carlo simulation showed that conventional deterministic health risk evaluation could overestimate risk outcomes. Likewise, Cr has 68.8% and 69.1% probability of non-carcinogenic risk to children and adult, respectively, and 80% and 79.8% probability of CR for adults and children respectively for Pb, suggesting that Cr and Pb is a priority control heavy metals. Therefore, it is recommended to continuously monitor the levels of heavy metals in wheat and its derived food products to ensure food safety.

Comparative analysis of red skin Tilapia and bovine gelatins as halal alternatives in food industry

Gelatin plays a vital role in the food industry, serving as a thickening agent, emulsifier, wetting agent, and stabiliser. However, conventional sources like mammalian gelatin pose health and societal issues, while poultry gelatin can present risks related to avian flu. Our work was motivated by recent studies focusing on alternative gelatin sources, which prompted further investigation. Our study aimed to extract gelatin from red-skin Tilapia and bovine sources. Both types of gelatin underwent pre-treatment using 0.2 M sodium hydroxide (NaOH) and 0.05 M acetic acid (CH3COOH) at 27ºC, followed by water extraction at 60°C for 3 hours. Fourier-transform infrared (FTIR) analysis confirmed that the extracted gelatins exhibited peaks similar to commercial gelatin. The extracted fish gelatin (EFG) demonstrated superior gel strength compared to commercial fish gelatin (CFG), whereas commercial bovine gelatin (CBG) exhibited superior gel strength than extracted bovine gelatin (EBG). The protein content of EFG and EBG was comparable, but the fat content was significantly higher in EFG. The foaming capacity was also evaluated, with EFG showing greater capacity than EBG. Our work demonstrates excellent potential of alternative gelatin for usage in various applications and creates new opportunities for the food sector, particularly for halal food production.

Analisis Strategi Pemasaran Serta Tingkat Kepuasan Konsumen Kentucky Fried Chicken (KFC)

This study aims to determine the marketing strategy and the level of consumer satisfaction with the products of the transnational company kentucky fried chicken (KFC). Data collection is done online, questionnaires are distributed to consumers who have visited KFC in West Java. The analysis method used is Important Performance Analysis (IPA) and Costumer Satisfaction Index (CSI). The results of this study indicate that Kentucky Fried Chicken (KFC) has carried out the 7P marketing strategy (Product, Place, Price, Promotion, People, Process, Physical Evidence) in West Java well, as evidenced by the calculation of CSI and IPA that has been done. From the CSI value of 81.36 located in the range of 80% - 100% which indicates that the level of consumer satisfaction with KFC is classified as "Very Satisfied". Based on IPA, KFC needs to do product differentiation, which makes the food products it sells have their own characteristics.

PENGARUH FOOD QUALITY DAN INOVASI PRODUK TERHADAP CUSTOMER SATISFACTION DI PENTOL NONA BENGKULU

The quality of a food product is very important for every founder of a food selling company. Apart from that, to increase consumer satisfaction, a business must innovate. The aim of this research is to determine the influence of food quality and product innovation on customer satisfaction at Pentol Nona Bengkulu. This type of research is a descriptive quantitative approach. The population in this research is all consumers at Pentol Nona Bengkulu within 1 month. Sampling in this study was determined using the unknown population formula so that the number of samples in this study was 96 respondents. The data collection techniques in this research are observation and questionnaires. The data analysis techniques used are multiple linear regression, coefficient of determination, and hypothesis testing. It was found that food quality has a positive effect on customer satisfaction of Pentol Nona Bengkulu City consumers, so the higher the food quality, the higher the customer satisfaction at Pentol Nona Bengkulu City. Product innovation has a positive effect on customer satisfaction of Pentol Nona Bengkulu City consumers, so the higher the product innovation, the higher the customer satisfaction at Pentol Nona Bengkulu City. Together, the food quality and product innovation variables influence the customer satisfaction variable at Pentol Nona, Bengkulu City. Keywords : Food Quality, Innovation Of Product, Customer Satisfaction

Food security challenges: A comparative review of USA and African Policies

This review provides a comprehensive overview of the food security challenges faced by the United States (USA) and African nations, examining the distinct policy approaches implemented to address these critical issues. The analysis focuses on key factors influencing food security, such as agricultural practices, economic structures, and political considerations. The United States and African nations grapple with diverse challenges in ensuring food security for their populations. This study undertakes a comparative review of the policies adopted by these regions to tackle the multifaceted issues related to food production, distribution, and accessibility. In the USA, the emphasis lies on advanced agricultural technologies and industrial farming practices. The country's policies are geared towards maximizing efficiency, ensuring a stable food supply, and promoting exports. However, challenges arise from the environmental impact of intensive farming, unequal distribution of resources, and the vulnerability of large-scale monocultures. Contrastingly, African countries face unique hurdles stemming from a combination of socio-economic factors, including limited access to modern farming technologies, land tenure issues, and inadequate infrastructure. Additionally, political instability and climate change exacerbate the challenges, impacting food production and distribution systems. The comparative analysis sheds light on the importance of tailoring food security policies to the specific needs and contexts of each region. It explores the potential for knowledge exchange and collaboration between the USA and African nations to address global food crises collaboratively. Emphasizing sustainable agricultural practices, equitable resource distribution, and adaptive governance strategies emerge as key recommendations to fortify both regions against future food security challenges. This study contributes valuable insights to policymakers, researchers, and practitioners aiming to develop effective strategies for enhancing global food security in a rapidly changing world.

Mitigating greenhouse gas emissions from the cattle sector: Land‐use regulation as an alternative to emissions pricing

AbstractReducing animal‐based food production would not only reduce agricultural greenhouse gas emissions but also free land that could sequester carbon. We examine the efficiency of a subsidy to cattle farmers for setting aside land for natural ecosystem regeneration. We develop a partial equilibrium model of the cattle sector that integrates land use, greenhouse gas emissions, and animal feeding. We compare the subsidy to alternative policies: a meat tax and a standard on animal feeding. We identify the conditions under which the subsidy is the best alternative to these other second‐best policies. The efficiency of the subsidy lies in its effects on both the extensive margin (reduced quantity of meat) and the intensive margin (production intensification, which reduces both the emission and land‐use intensities of meat). An empirical application to France, where spontaneous regeneration corresponds mostly to forest regrowth, shows that the subsidy dominates the other alternative policies considered for a wide range of parameter values but is sensitive to carbon leakage when the economy is open to trade.

Smart Urban Agriculture

AbstractGiven cities’ rising environmental problems and increasing food insecurity, innovative organizational endeavors such as urban agriculture present a chance for additional ecosystem services and food production. However, urban spaces are hostile as they jeopardize the availability of air, water, or soil. While digital innovations enable the management of scarce resources in traditional agricultural contexts, little is known about their applicability in urban agriculture endeavors. This study proposes a multi-layer taxonomy focusing on digital technologies, data, and different approaches in urban agriculture, as well as 20 organizational readiness factors derived with academics and practitioners from the smart urban agriculture domain. Combining both perspectives, the study sheds light on the nature of smart urban agriculture and ways to leverage its economic, ecological, and social value.

Protein Hydrolysates from Salmon Heads and Cape Hake By-Products: Comparing Enzymatic Method with Subcritical Water Extraction on Bioactivity Properties

Fish by-products can be converted into high-value-added products like fish protein hydrolysates (FPHs), which have high nutritional value and are rich in bioactive peptides with health benefits. This study aims to characterise FPHs derived from salmon heads (HPSs) and Cape hake trimmings (HPHs) using Alcalase for enzymatic hydrolysis and Subcritical Water Hydrolysis (SWH) as an alternative method. All hydrolysates demonstrated high protein content (70.4–88.7%), with the degree of hydrolysis (DH) ranging from 10.7 to 36.4%. The peptide profile of FPHs indicated the breakdown of proteins into small peptides. HPSs showed higher levels of glycine and proline, while HPHs had higher concentrations of glutamic acid, leucine, threonine, and phenylalanine. Similar elemental profiles were observed in both HPHs and HPSs, and the levels of Cd, Pb, and Hg were well below the legislated limits. Hydrolysates do not have a negative effect on cell metabolism and contribute to cell growth. HPSs and HPHs exhibited high 2,2′–azino-bis(3 ethylbenzthiazoline-6)-sulfonic acid (ABTS) radical scavenging activity, Cu2+ and Fe2+ chelating activities, and angiotensin-converting enzyme (ACE) inhibitory activity, with HPHs generally displaying higher activities. The α-amylase inhibition of both FPHs was relatively low. These results indicate that HPHs are a promising natural source of nutritional compounds and bioactive peptides, making them potential candidates for use as an ingredient in new food products or nutraceuticals. SWH at 250 °C is a viable alternative to enzymatic methods for producing FPHs from salmon heads with high antioxidant and chelating properties.

Recent Advances in Bio-Based Adhesives and Formaldehyde-Free Technologies for Wood-Based Panel Manufacturing

Abstract Purpose of Review Conventional formaldehyde-based adhesives for wood-based composite panels are subject to significant concerns due to their formaldehyde emissions. Over the past decade, the wood adhesive industry has undergone a considerable transformation that is characterized by a major push in bio-adhesive development. Various bio-based materials have been explored to create alternatives to conventional formaldehyde-based adhesives. Moreover, growing interest in circularity has led to increasingly exploiting industrial coproducts and by-products to find innovative solutions. Recent Findings Industrial production generates many coproducts that can serve as renewable resources to produce eco-friendly materials. These coproducts offer alternative supply sources for material production without encroaching on food production. Many bio-based compounds or coproducts, such as saccharides, proteins, tannins, and lignocellulosic biomass, can also be used to develop bio-based adhesives. As part of ongoing efforts to reduce formaldehyde emissions, new hardeners and crosslinkers are being developed to replace formaldehyde and bio-scavengers. Other alternatives, such as binderless panels, are also emerging. Summary This review focuses on sources of bio-based material derived from by-products of various industries, which have many advantages and disadvantages when incorporated into adhesives. Modification methods to enhance their properties and performance in wood-based panels are also discussed. Additionally, alternatives for developing low-emission or formaldehyde-free adhesives are addressed, including hardeners, bio-scavengers, and binderless options. Finally, the environmental impact of bio-based adhesives compared to that of synthetic alternatives is detailed.

Culinary narratives: Exploring the socio-cultural dynamics of food culture in Africa

This paper delves into the multifaceted dimensions of food culture in Africa beyond culinary practices. It examines the socio-cultural significance of food consumption, production, and distribution in shaping identities, social structures, and community relationships. Through case studies and ethnographic research, it explores how food serves as a lens for understanding issues such as globalization, colonial legacies, and cultural hybridity, highlighting how food culture intersects with broader socio-political dynamics on the continent. Culinary Narratives: Exploring the Socio-Cultural Dynamics of Food Culture in Africa Culinary narratives in African literature provide a unique lens through which to explore the socio-cultural dynamics of food culture on the continent. This review delves into the rich tapestry of food-related stories, traditions, and practices in African societies, highlighting their significance in shaping identity, community, and cultural exchange. This study examines the role of culinary narratives in African literature, focusing on how food-related stories and traditions reflect and influence socio-cultural dynamics. By analyzing a range of literary works from different African countries and regions, this study aims to uncover the diverse ways in which food culture is represented and its impact on African societies. Studying culinary narratives in African literature is crucial for understanding the complexities of food culture and its role in shaping identity and social relations. Food is not just sustenance in African societies; it is a form of communication, a marker of identity, and a medium through which cultural traditions are preserved and shared. By exploring culinary narratives, we gain insights into the values, beliefs, and traditions that define African cultures. This study argues that culinary narratives in African literature offer a rich and multifaceted portrayal of food culture, highlighting its significance in shaping identity, community, and cultural exchange. Through the analysis of various literary works, this study seeks to illuminate the diverse ways in which food is represented and its impact on African societies. In conclusion, culinary narratives in African literature offer a unique and insightful perspective on the socio-cultural dynamics of food culture on the continent. By exploring these narratives, we gain a deeper understanding of the diverse ways in which food is used to communicate, celebrate, and preserve cultural heritage in African societies.

Effects of Cactus Polysaccharide on Pasting, Rheology, Structural Properties, In Vitro Digestibility, and Freeze–Thaw Stability of Rice Starch

This study combined rice starch (RS) with cactus polysaccharide (CP) at different composites (0.6%, 1.2%, 1.8%, 2.4%, and 3.0%, w/w), and analyzed the variations in the complex gelatinization properties, rheological properties, thermal properties, structural properties, digestibility, and freeze–thaw stability. As a result, the pasting parameters (p < 0.05) and storage modulus (G′) together with the loss modulus (G″) decreased as the CP concentration increased; meanwhile, the RS and the CP–RS gels were pseudoplastic fluids. As revealed by differential scanning calorimetry (DSC), incorporating CP into the starch elevated the starch gelatinization temperature while decreasing gelatinization enthalpy, revealing that CP effectively retarded long-term retrogradation in RS. The gel microstructure and crystallization type altered after adding CP. Typically, CP inclusion could enhance the proportion of resistant starch and slowly digestible starch (SDS), thereby slowing RS hydrolysis. Concurrently, adding CP promoted the RS freeze–thaw stability. These findings could potentially aid in the innovation of CP-based food products.

Dual bacteriocin and extracellular vesicle-mediated inhibition of Campylobacter jejuni by the potential probiotic candidate Ligilactobacillus salivarius UO.C249.

Campylobacter jejuni (C. jejuni) is a major cause of gastroenteritis and a global public health concern. The increasing antibiotic resistance and lack of effective alternatives in livestock production pose serious challenges for controlling C. jejuni infections. Therefore, alternative strategies are needed to control this pathogen, especially in the poultry industry where it is prevalent and can be transmitted to humans through contaminated food products. In this study, Ligilactobacillus salivarius UO.C249 isolated from broiler intestinal mucosa inhibited C. jejuni and exhibited important probiotic features. Beyond bacteriocins, Lg. salivarius UO.C249 secretes antimicrobial extracellular vesicles (EVs) with a unique protein set distinct from bacteriocins that are involved in transmembrane transport and peptidoglycan degradation. Our findings suggest that beyond bacteriocins, EV production is also a distinct inhibitory signaling mechanism used by Lg. salivarius UO.C249 to control C. jejuni. These findings hold promise for the application of probiotic EVs for pathogen control.

Impact of International Food Standards on Firms’ Export Behavior: A Case of Indian Marine Industry

Exporters of food products face stringent standards due to the possibility of contaminations and diseases. Standards are complex, varying across countries, time and stage of production. The cost of compliance is, typically, borne by the exporting firm. This paper examines the impact of international food standards on the export behavior of Indian marine firms. Standards negatively affect the value of exports and participation in trade. Further, there is a heterogeneous impact of standards. Relatively larger, profitable and productive firms are able to comply with the standards and gain from them. The long-term implication could be the concentration of market power in this industry.

Optimized Crop Disease Identification in Bangladesh: A Deep Learning and SVM Hybrid Model for Rice, Potato, and Corn

Agriculture plays a vital role in Bangladesh’s economy. It is essential to ensure the proper growth and health of crops for the development of the agricultural sector. In the context of Bangladesh, crop diseases pose a significant threat to agricultural output and, consequently, food security. This necessitates the timely and precise identification of such diseases to ensure the sustainability of food production. This study focuses on building a hybrid deep learning model for the identification of three specific diseases affecting three major crops: late blight in potatoes, brown spot in rice, and common rust in corn. The proposed model leverages EfficientNetB0′s feature extraction capabilities, known for achieving rapid high learning rates, coupled with the classification proficiency of SVMs, a well-established machine learning algorithm. This unified approach streamlines data processing and feature extraction, potentially improving model generalizability across diverse crops and diseases. It also aims to address the challenges of computational efficiency and accuracy that are often encountered in precision agriculture applications. The proposed hybrid model achieved 97.29% accuracy. A comparative analysis with other models, CNN, VGG16, ResNet50, Xception, Mobilenet V2, Autoencoders, Inception v3, and EfficientNetB0 each achieving an accuracy of 86.57%, 83.29%, 68.79%, 94.07%, 90.71%, 87.90%, 94.14%, and 96.14% respectively, demonstrated the superior performance of our proposed model.

“Eradicating hunger through climate litigation?” – An assessment of the opportunities and challenges of enforcing the human right to food through courts

Globally, hunger and malnutrition have been on the rise, with climate change exacerbating food insecurity by affecting food production and accessibility. In international law, the human right to food provides a legal protection for individuals. It emphasises that food should not just meet minimal nutritional needs but ensure the ability to obtain food in a dignified manner. In order to achieve this goal, the text discusses the role of climate litigation in addressing global hunger by focusing on the right to food in the context of increasing climate change impacts. It outlines the legal foundations and challenges associated with enforcing this right through various legal systems and the potential of using climate litigation as a tool to ensure food security.

Unearthing Lactococcus lactis and Scheffersomyeces symbionts from edible wood-boring beetle larvae as a bio-resource for industrial applications

BackgroundGut microbiota have several advantages in influencing the host nutrition, metabolism, immunity and growth. However, the understanding of the gut microbiota in key edible wood-boring beetle larvae remain largely undefined. In the present study, the characteristics of the gut microbiota of two edible wood-boring species (Titocerus jaspideus and Passalus punctiger) from two indigenous forested areas were investigated.ResultsOver 50% of Amplicon Sequence Variants (ASVs) constituted of Firmicutes in T. jaspideus. The dominant phyla in both beetle species were Bacteroidota (4.20–19.79%) and Proteobacteria (15.10–23.90%). Lactococcus lactis was the most abundant and core prokaryote in the guts of T. jaspideus. The fungi identified in the gut of both insects belong to the phylum Obazoa (66%) and Ascomycota (> 15%). Scheffersomyeces sp. was the core eukaryote recorded. The diversity of gut microbiota in both insect species did not vary significantly. Most of the prokaryotic genes expressed were predominantly associated with biosynthesis and metabolism.ConclusionOur findings demonstrated that Lactococcus lactis and Scheffersomyeces are core gut microbes of wood boring beetle larvae with desirable probiotic properties and promising use in food product fermentation for improved growth performance, gut barrier health, intestinal flora balance and immune protection for human and animals. Further studies to highlight the latest medical-based applications of L. lactis as live-delivery vector for the administration of therapeutics against both communicable and non-communicable diseases are warranted.

Land suitability mapping for groundnut production in southern region of Borno state, Nigeria

Groundnut (Arachis hypogea) is a leguminous oilseed crop cultivated in the semi-arid and subtropical region of the world. In West Africa, groundnut plays an important role. This includes food production for household consumption, cash crops, sources of employment, and incomes for smallholders in rural households. In Nigeria, it was among the major sources of income before the oil boom. Some of the activities surrounding its production are the development of commerce, employment, and foreign exchange. This study aims to identify the most suitable sites for groundnut production in the Southern Borno Region, Nigeria with the objectives to identify areas of groundnut cultivation within the southern Borno region and to conduct a suitability analysis for groundnut production within the study area. Primary and secondary data and questionnaires were used in this study. Climatic data such as Temperature, Rainfall, Precipitation, Wind speed, Relative Humidity, Soil, and Topographic data were also used. The parameters were overlaid using the weighted overlaid operation in ArcGIS 10.3 and ranked from the most suitable to the least suitable for wheat production within the study region. The result of the study revealed that groundnut is cultivated in all parts of Southern Borno Region. It revealed that areas around Askira/Uba, Chibok and Damboa are the most suitable site for groundnut cultivation. This study demonstrates the capabilities of Remote Sensing and GIS Systems for multi-criteria analysis in Land Suitability Mapping. It is recommended that farmers around Askira/Uba, Chibok and Damboa be encouraged to cultivate more groundnuts.

The Effect of Agricultural Subsidies on Rice Productivity and Prices in Southeast Asia: A Panel Regression Study

Agricultural subsidies have become a common instrument used by countries in the Southeast Asian Region to support farmers, increase food production, and control prices. However, the effectiveness and long-term impact of these subsidies are still a hot debate in the economic literature. The purpose of this study is to analyze how agricultural subsidies affect rice productivity and rice prices in three Southeast Asian countries: Indonesia, Thailand, and Vietnam, during the period 2020-2023. The method used in this study is panel data analysis with a fixed effect to control the variation between countries that is not observed. Panel regression analysis was carried out to identify the relationship between agricultural subsidies and the two dependent variables. The F-test and Chi-square test are used to test for the existence of fixed effects, while the cross-section dependency test is used to check the residual correlation between countries. The results of this study show that the regression results of the panel show that agricultural subsidies have a significant negative impact on rice productivity (Y1), which may reflect inefficient resource allocation or the presence of market distortions that hinder productivity increase. In contrast, subsidies have a significant positive impact on rice prices (Y2), suggesting that subsidies can help maintain price stability and provide economic benefits for farmers. From the overall analysis, agricultural subsidies in Southeast Asia have a complex and diverse impact on rice productivity and prices. While subsidies help maintain price stability and support farmers' welfare, their impact on rice productivity still needs to be further eval_uated to ensure more efficient and sustainable allocations. Governments in the region need to continue to review and adjust their subsidy policies in order to strike a balance between supporting smallholders, increasing productivity, and maintaining rice price stability, while minimizing negative impacts on markets and the environment.

Impact of non-covalent interactions on the solvation of ovalbumin in an aqueous environment of different pHs: Thermodynamic and diffusion studies

The solvation behavior of protein is an important factor in protein-based food products. In the present study, the xylitol (XY) - ovalbumin (OVN) interaction in an aqueous solution of different pH conditions is analyzed in two methods. In one method, the thermodynamic parameters Gibbs free energy, free volume, and internal pressure are calculated by using ultrasonic velocity, density, and viscosity in addition the refractive index is also measured. The second method is a theoretical method in which using the Laplace transform technique the diffused amount of protein have been calculated for OVN with and without XY in different pH environment. The addition of XY with OVN makes the system with more free energy and free volume as the internal pressure decreases. This trend shows that preferential interaction occurs between solvent–solute molecules. The diffusivity of OVN is reduced after the addition of XY representing the strength of protein-protein interaction. The effect of pH changes is well reflected in both experimental and theoretical results. The results confirm that acidic pH extremity offers more solvation of OVN compared to alkaline pH extremity.

4-methylimidazole exposure impairs sperm mobility by reducing the expression of blood-testis barrier junction protein in mouse testes

4-methylimidazole (4-MI), a derivative of imidazole, is a widely used component in caramel-colored food products such as soy sauce, beer and other soft drinks. The present study is aimed to investigate the effects of 4-MI on the male reproduction. The results revealed that 8 weeks of 4-MI exposure did not significantly alter the body weight and testicular weight of male mice. However, testicular morphology and computer-assisted sperm analysis showed that exposed to 4-MI caused irregular arrangement of spermatogenic cells in the testes and weakened sperm motility. Consistently, we observed the decreased fertilization ability in vivo of 4-MI-treated male mice. We further demonstrated that 4-MI disrupted the blood-testis barrier (BTB) integrity by decreasing the protein expression of BTB-related junction with permeability assay and western blot. In addition, the apoptosis of Sertoli cells (TM4) occurred in 4-MI treated mice, which might be caused by the generation of oxidative stress. Collectively, our findings document that 4-MI exposure damages the sperm mobility via disruption of BTB integrity.