Concentrated Orange Juice Research Articles

Assessment of Physicochemical Properties of Orange Juice Concentrate Formulated with Pectin, Xanthan, and CMC Hydrocolloids.

Orange concentrate (OC) is one of the main raw materials in the nonalcoholic beverage industry. Considering the difference in orange varieties, preserving its natural quality is essential to yield a product with favorable attributes and physical stability. Thus, the present study is aimed at assessing the effect of pectin, xanthan, and carboxymethyl cellulose (CMC) in a concentration range of 0-0.2% (w/v) along with mixing temperature on Brix, pH, acidity, density, turbidity, and viscosity of OC and at calculating the model equation for each attribute. The results showed that, except for CMC, the influence of concentration, type, and amount of hydrocolloid on pH changes was insignificant. Adding each hydrocolloid individually, in pairs, or threes reduced the density, and the measured density was lower at a mixing temperature of 4°C. Also, it was observed that mixing temperature was the only factor influencing turbidity, and the values were significantly lower at 80°C compared to 4°C. A significant interaction effect of xanthan concentration and mixing temperature on the Brix was observed. Adding hydrocolloids, except pectin, resulted in a significant (p < 0.05) increase in viscosity, and xanthan had the greatest effect on the viscosity. A suitable model was designed using pectin and xanthan, pectin and CMC, and all three gums, resulting in a final OC product with high stability and improved physical and chemical attributes. The optimized values for Brix, pH, acidity, density, turbidity, and OC viscosity were achieved using 0.08% pectin, 0.19% xanthan, and 0.08% CMC at 80°C mixing temperature.

Ozone Combined with Ultrasound Processing of High-Sugar Concentrated Orange Juice: Effects on the Antimicrobial Capacity, Antioxidant Activity, and In Vitro Bioaccessibility of Carotenoids

Ozone Combined with Ultrasound Processing of High-Sugar Concentrated Orange Juice: Effects on the Antimicrobial Capacity, Antioxidant Activity, and In Vitro Bioaccessibility of Carotenoids

Study on the Regulation of Browning of Concentrated Orange Juice by Ultrasonic-Vacuum Combined with High-Pressure CO2 During Storage

Study on the Regulation of Browning of Concentrated Orange Juice by Ultrasonic-Vacuum Combined with High-Pressure CO2 During Storage

Revalorization of industrial by-products from frozen concentrated orange juice for a circular economy

Revalorization of industrial by-products from frozen concentrated orange juice for a circular economy

Overcoming dormancy in citrus rootstock seeds

Citrus is a fruit of great importance in Brazil, mainly in the socio-economic issue as it generates employment and income due to the production and export of concentrated orange juice, as well as other products. In view of the above, this work aimed to evaluate the dormancy overcoming of citrus seeds of the cultivars: Flying Dragon, San Diego, Índio, Cravo Santa Cruz, Riverside, BRS Sunki Tropical, Volkamerian, as well as the species Poncirus trifoliata. The seeds from Embrapa (Brazilian Agricultural Research Corporation) Clima Temperado, located in Pelotas-RS, as well as from Embrapa Cassava e Fruticultura, located in Cruz das Almas-BA, were submitted to the germination test as written in the Seed Analysis Rules and a germination test in which a small cut was made in the seed coat on the side of the embryo, around 0.1 mm with the help of a stylet, which was used 200 seeds (4 samples of 50 seeds per repetition) on germitest® paper, moistened with distilled water in an amount equivalent to 2.5 times its weight and kept inside a germinator at a constant temperature of 25 °C, photoperiod of 12 hours. The evaluations were carried out at the end of the 21 days after the installation of the test, providing data that were expressed in percentage of normal and abnormal seedlings and non-germinated seeds (hard, dormant or dead). of citrus seedlings at the end of the tests and the data obtained were submitted to analysis of variance and the means were compared by the Tukey test at a 5% significance level (p≤0.05), with the aid of the R- bio. It is concluded that, when evaluating germination and shoot and root length of seedlings cultivars Flying Dragon, Índio, Cravo Santa Cruz, BRS Sunki Tropical, Riverside and Volkameriano, San Diego and the species P. trifoliata, were satisfactory when submitted in the dormancy breaking process, but further studies are needed.

The Chemical Engineering Design of a Commercial Citrus Evaporator for the Production of 6,539.86 kg/hr Orange Juice Concentrate in Lagos, Nigeria, West Africa

Chemical engineers are high in importunity by industries in a wide range of sectors for the following impetus: Based on nominally defined problem statements, such as a client need or a set of experimental ramifications, chemical engineers can devise and gain a profound understanding of fundamental physical science relevant to the enigma, and harness this apprehension to excogitate a comprehensive action plan and a set of detailed specifications that, if implemented, will lead to forecasted financial dividends. In this treatise, as chemical engineers, apply our scientific and mathematical knowledge, specifically chemistry, applied mathematics, and engineering concepts, to translate experimental or conceptual ideas into value-added products in a lucrative, safe (environmentally friendly), and industry-leading manner. Citrus sinensis is the scientific name for orange, a savory and aromatic fruit from the Rutaceae family. The annual global citrus production increased dramatically over the last few decades, from around 30 million metric tonnes in the late 1960s to an estimated total of more than 105 million metric tonnes from 2000 to 2004, with oranges accounting for more than half of total global citrus production. Evaporation is a principle habituated in the processing industry to concentrate aqueous liquid streams by vaporizing the quantity of water content in a solution. The curtailment of energy consumption for evaporation reckoned on multitudinous components, such as evaporation capacity, number of effects, operation efficiency, and annual operation hours. We emphasized burgeoning efficient strategies to curtail the energy consumption of evaporators and alluded that monitoring the rate of energy dissipation guarantee the sustainability of an industrial enterprise. We betokened the heat transfer area was the indispensable criterion in the design of an evaporator and delineated correlations for estimating the size of the tube bundle. Ideally, a well-designed evaporator should be able to transfer heat adeptly at a high flow rate, have the minimum valuation of installation, operation, and maintenance, be able to bifurcate vapors from liquid concentrates, meet the conditions required by the product under treatment, produce a product of a quality required, and, if possible, be energy efficient. The peculiar grade of evaporator adopted was the 5-effect, 8-stage Thermally Accelerated Short Time Evaporator. We embraced the genre of evaporators after investigating their benefits relative to other evaporators used in food processing. In addition, it is fundamental to institute governance to identify benchmarks for optimal distribution based on results obtained by all segments of the production chains and orange juice exporters. This input will benefit the collective national interest and is pivotal for the orange juice industry.

Large scale survey of yeasts in frozen concentrated orange juice (FCOJ): Occurrence, diversity, and resistance to peracetic acid

This study aimed to evaluate the occurrence and diversity of yeasts in frozen concentrated orange juice (FCOJ) and assess the resistance of yeasts to peracetic acid. One thousand five hundred (n = 1500) samples of frozen concentrated orange juice (FCOJ) were analyzed, and 280 yeast strains were isolated and identified. Candida represented 37% of all isolates, and the main species identified were Candida pseudointermedia and C. orthopsilosis. Other yeasts identified were Starmerella, Wickerhamiella, Wickerhamiella, Clavispora, Kodamaea, Meyerozyma, Rhodotorula, Trichosporon, Wickerhamomyces, Kluyveromyces, Hanseniaspora, Saccharomyces, Torulaspora, and Zygosaccharomyces. The exogenous origin of the contamination in FCOJ samples analyzed was shown by the high diversity, corroborated by the Simpson (D) and Shannon (H′) indices. From a total of 227 yeasts strains tested, more than 20% were able to withstand peracetic acid concentrations >200 ppm, with emphasis on W. anomalus (300 ppm), W. sergipensis (350 ppm), C. rugopelliculosa (350 ppm), K. marxianus (450 ppm), C. parapsilosis (500 ppm), C. pseudointermedia (500 ppm), W. sorbosivorans (500 ppm), C. boleticola (600 ppm), S. cerevisiae (700 ppm) and C. orthopsilosis (750 ppm). This study adds novel data regarding the occurrence and diversity of yeasts present in FCOJ and their resistance to a chemical compound commonly employed in the sanitization of processing and distribution premises and vehicles. These findings are essential to support the development of measures for proper mitigation of contamination of orange juice towards reducing the risks of spoilage by yeasts during FCOJ transportation/storage or when FCOJ is used as an ingredient.

Gravitational assisted three-stage block freeze concentration process for producing enriched concentrated orange juice (Citrus sinensis L.): Multi-elemental profiling and polyphenolic bioactives

A three-stage block freeze concentration process using minimal instrumental apparatus was studied to concentrate minerals and polyphenols in orange juice, obtaining one cryoconcentrate and one ice fraction at each stage. The process parameters were designed, and the cryoconcentrates and ice fractions were analyzed for physicochemical properties, polyphenolic composition, and mineral profile. The three-stage process obtained high concentrations of polyphenols and minerals in orange juice, with the third stage cryoconcentrate obtaining a 429% increase in polyphenols compared to the initial juice. This cryoconcentrate had the highest K, Mg, and Ca levels, while most of the minerals were significantly retained in the ice fractions. The antioxidant activity of concentrated juices increased sequentially by 168, 272, and 343% across process stages. The last two stages of cryoconcentration using only gravitational force led to high concentrations of polyphenols, minerals, soluble solids, and vitamin C in concentrated juices. • The three-stage block freeze concentration process was applied for the enrichment of the orange juice. • Process parameters showed excellent performance and efficiency. • The three-stage process retained a high concentration of polyphenols and minerals in the samples. • Concentrated orange juice showed high concentrations of soluble solids, vitamin C and color intensity.

Price transmission between international and domestic prices in the Brazilian citrus sector

The orange juice chain is a representative sector of the Brazilian agribusiness sector and its performance warrants analysis to identify strategies to enhance its competitiveness. Analysis of asymmetry in food value chain is important because it provides valuable information on market structure and performance. We use an asymmetric threshold error correction model to examine threshold, short- and long-run asymmetries on price transmission from international to domestic prices of oranges in Brazil. We use monthly data on international frozen concentrated orange juice prices and domestic prices of oranges in Brazil for the period from January 1996 to December 2020 in the analysis. We find evidence of threshold and asymmetries in short- and long-run price transmission and asymmetric adjustment towards a long-run relationship between international and domestic orange prices in Brazil. Decreases in international prices that lead to reductions in marketing margins are passed on quickly to domestic prices, but this is not the case for increases in international prices. We discuss implications for the Brazilian citrus industry.

Are soft commodities markets affected by the Halloween effect?

Within the last three decades commodity markets, including soft commodities markets, have become more and more like financial markets. As a result, prices of commodities may exhibit similar patterns or anomalies as those observed in the behaviour of different financial assets. Their existence may cast doubts on the competitiveness and efficiency of commodity markets. It motivates us to conduct the research presented in this paper, aimed at examining the Halloween effect in the markets of basic soft commodities (cocoa, coffee, cotton, frozen concentrated orange juice, rubber and sugar) from 1999 to 2020. This long-time span ensures the credibility of results. Apart from performing the two-sample t-test and the rank-sum Wilcoxon test, we additionally investigate the autoregressive conditional heteroskedasticity (ARCH) effect. Its presence in our data allows us to estimate generalised autoregressive conditional heteroskedasticity [GARCH (1, 1)] models with dummies representing the Halloween effect. We also investigate the impact of the January effect on the Halloween effect. Results reveal the significant Halloween effect for cotton (driven by the January effect) and the significant reverse Halloween effect for sugar. It brings implications useful to the main actors in the market. They may apply trading strategies generating satisfactory profits or providing hedging against unfavourable changes in soft commodities prices.

Efficacy of Ohmic Vacuum Concentration for orange juice concentrates and their physicochemical properties under different voltage gradients

The efficacy of ohmic vacuum concentration (OVC) was evaluated for the production of value-added orange juice concentrate under different voltage gradients. OVC enables the evaporation of moisture in fruit juice at low temperatures under a vacuum. An OVC system was customized using an ohmic cell, vacuum chamber, vacuum pump, and pressure regulator. During OVC treatment, orange juice extract was ohmically heated to 66 °C using different voltage gradients (15, 20, 25, and 30 V/cm) under 27 kPa vacuum. The highest concentration of OVC was 22 min, producing 2 kg water/kg dry solid orange concentrate. However, it took 40 min to produce the same concentration using ohmic atmospheric concentration (OAC) treatment. OVC minimized the depolymerization of pectin at lower concentrations and produced a thicker orange concentrate than that by OAC. OVC also enabled a slower concentration time in which the orange concentrate was exposed to less thermal abuse. OVC did not induce discoloration or degradation of vitamin C content because the juice extract was concentrated at low temperatures for a short time. This study showed the potential of OVC to produce value-added fruit juice concentrates.

Combination of epigallocatechin gallate with l-cysteine in inhibiting Maillard browning of concentrated orange juice during storage

Orange juice is popular with consumers because of its unique taste, flavor as well as nutritional value which accounts for a large proportion of the global juice market. Concentrated orange juice (COJ), undergoes browning during storage seriously affecting its quality and commercial. This study was the first to evaluate the effects of epigallocatechin gallate (EGCG) and l-cysteine (L-cys) on Maillard browning of COJ during storage. The results show that EGCG and L-cys reduce significantly the production of 5-hydroxymethylfurfural (5-HMF), the characteristic product of Maillard reaction (MR), and the combined use of EGCG and L-cys was even more effective. Furthermore, the color of the treated COJ displayed negligible change after storage, with higher L* and b* values and marginally lower a* values. The flavor, taste, main volatile substances as well as rheological properties of the treated COJ were also determined; none of these properties were affected adversely during storage. This treatment method ensures that the key sensory quality and material properties of COJ are preserved by the proposed treatment while inhibiting Maillard browning during storage.

Effect of water on odorants signals in orange juice by head space-gas chromatography: A possible influence on odor intensity

Compounds such as terpenes, alcohols and aldehydes, are key odorants in orange juice. One of the common methods to evaluate the concentration of odorants is headspace-gas chromatography (HS-GC). The concentration of odorants found in the gas phase indicates on their concentration in the liquid, and together with their odor thresholds, can be directly related to odor sensation. However, the addition of water to samples of orange juice concentrate (OJC) that reduces the absolute odorants concentrations in the liquid, seems to significantly increase the signal response of terpenes and long-chain aldehydes measured in the gas phase. This study indicates the effect of water content in OJC on the detection and the intensity of odorants in the gas phase. Therefore, these results demonstrate that water has a significant role in the transition of odor to the gas phase above the liquid matrix.

A case of 55 years of servitisation in the frozen concentrated orange juice industry

Although the term servitisation was coined in the late 1980s, this paper identifies and investigates a case that has been practiced in Brazil since 1963 by a capital goods manufacturer, which is focused on supplying machines and services to largest producers of frozen concentrated orange juice in country. Therefore, the aim of this paper is to describe and analyse the main characteristics of this case. Methodology used corresponds to an exploratory and in-depth case study conducted from supplier company perspective, but also by investigating its main customer company (dual approach). Data obtained were described and analysed using a framework designed for this purpose that is based on three classic publications on the subject. Results demonstrate a case of extreme servitisation, even for standards considered in present literature.

Penicillium italicum: An Underexplored Postharvest Pathogen.

In the agricultural sector, citrus is one of the most important fruit genus in the world. In this scenario, Brazil is the largest producer of oranges; 34% of the global production, and exporter of concentrated orange juice; 76% of the juice consumed in the planet, summing up US$ 6.5 billion to Brazilian GDP. However, the orange production has been considerable decreasing due to unfavorable weather conditions in recent years and the increasing number of pathogen infections. One of the main citrus post-harvest phytopathogen is Penicillium italicum, responsible for the blue mold disease, which is currently controlled by pesticides, such as Imazalil, Pyrimethanil, Fludioxonil, and Tiabendazole, which are toxic chemicals harmful to the environment and also to human health. In addition, P. italicum has developed considerable resistance to these chemicals as a result of widespread applications. To address this growing problem, the search for new control methods of citrus post-harvest phytopathogens is being extensively explored, resulting in promising new approaches such as biocontrol methods as “killer” yeasts, application of essential oils, and antimicrobial volatile substances. The alternative methodologies to control P. italicum are reviewed here, as well as the fungal virulence factors and infection strategies. Therefore, this review will focus on a general overview of recent research carried out regarding the phytopathological interaction of P. italicum and its citrus host.

Hexyl gallate for the control of citrus canker caused by Xanthomonas citri subsp citri.

Brazil is the biggest producer of sweet oranges and the main exporter of concentrated orange juice in the world. Among the diseases that affect citriculture, Asiatic citrus canker, caused by the bacterial pathogen Xanthomonas citri, represents one of the most significant threats. The current Brazilian legislation regulating the control of citrus canker no longer requires the eradication of affected trees in states where the incidence of the disease is high. Instead, control involves disease control measures, including periodic preventative spraying of copper compounds. The long‐term use of copper for plant disease control has raised concerns about environmental accumulation and toxicity, as well as the selective pressure it exerts leading to the emergence of copper‐resistant X. citri strains. Here, we evaluated hexyl gallate (G6) as an alternative to copper compounds for citrus plant protection. G6 was able to protect citrus nursery trees against X. citri infection. Thirty days after inoculation, the trees treated with G6 developed 0.5 lesions/cm2 leaf area compared with the 2.84 lesions/cm2 observed in the untreated control trees. Also, G6 did not interfere with germination and root development of tomato, lettuce, and arugula, which is consistent with our previous data showing that G6 is safe for tissue culture cell lines. Membrane permeability tests showed that the primary target of G6 is the bacterial outer membrane. Finally, we could not isolate spontaneous X. citri mutants resistant to G6 nor induce resistance to G6 after long‐term exposures to increasing concentrations of the compound, which suggests that G6 may have multiple cellular targets. This study demonstrated that G6 is a promising candidate for the development and use in citrus canker management.

CAN INDIVIDUAL INVESTORS BENEFIT FROM TECHNICAL ANALYSIS IN MARKETS OF SOFT COMMODITIES? EMPIRICAL STUDY FOR 2010–2018

After the 2008 financial crisis, many investors diversified their portfolios with different commodities, including the so-called softs. This paper aims to answer the question of whether individual investors can benefit from technical analysis on soft commodity markets. The empirical study is based on daily quotations of six soft commodities: coffee, cocoa, sugar, cotton, rubber and frozen concentrated orange juice from 2010 to 2018, and investigates the profitability of applying indicators and oscillators based on moving averages with different length. The results show that the application of five-day simple and weighted moving averages and momentum oscillators was most effective, providing positive returns in five out of six soft commodities markets.

In vitro effect of children's toothpaste on brushing abrasion of eroded primary enamel.

Emerging data have suggested that acid erosion has become an increasing clinical problem in pediatric dentistry. This study aimed to investigate the abrasive effects of two commercial toothpastes on primary enamel eroded by orange juice using an in vitro model. Thirty enamel slabs were obtained from primary teeth and then randomly assigned to three groups (n = 8) comprising two different toothpastes: G1-control-distilled water; G2-Dentifrice A (containing no fluoride); and G3-Dentifrice B (1.100 ppmF-NaF). Each slab had one half protected to provide a control side, and the other one was subjected to treatments. The slabs were submitted to daily erosive challenges (3×/day, 2min) in concentrated orange juice (pH 3.38) associated with abrasive challenges using a tooth-brushing machine (150 brush movements for each cycle). During the experimental period, the slabs were kept in 37°C artificial saliva, and the experiment was carried out for 5days. The depths of the resulting eroded areas were measured by stylus profilometry. The data were analyzed using ANOVA and the Tukey-Kramer test (α = 5%). Tooth loss (µm, mean ± SD) was 2.46 ± 1.18 for G1, 3.32 ± 2.12 for G2 and 2.14 ± 1.03 for G3. Therefore, the NaF dentifrice (Dentifrice B) produced significantly less mineral loss (p = 0.04) than dentifrice A. The findings suggest that fluoride toothpaste could protect primary enamel against erosion.

A case of fifty-five years of Servitization in the Frozen Concentrated Orange Juice industry

A case of fifty-five years of Servitization in the Frozen Concentrated Orange Juice industry

Why the new orange juice consumption model favors global trade and growth in orange production

PurposeThe purpose of this paper is to analyze international orange trade as different types of orange juice seem to obtain the favor of newer food consumption patterns as opposed to fresh oranges. In addition, the authors will outline market tendencies that could be useful to stakeholders interested in any way in the sector.Design/methodology/approachThis document uses the Lafay index (LFI) in order to evaluate the intra-sectoral trade specialization; however, the social network analysis (SNA) approach is used to connect the international trade relations and to refine, classify and prioritize the countries having a central role in the orange juice world trade network. For both indexes, UNCOMTRADE has been used.FindingsThe findings show that the growing orange juice trade is the leading global growth factor as opposed to the sale of fresh oranges. It appears that major trade revenues come from orange juice concentrate (Frozen Concentrated Orange Juice (FCOJ)). Business takes place mostly in Europe.Originality/valueThis study shows for the first time that the current orange juice export competitiveness is crucial to the long-term survival of the orange sector. This study valuably contributes to the less known literature regarding FCOJ and Not From Concentrate orange juice trade relevance.