{"id":4755,"date":"2019-04-26T06:58:49","date_gmt":"2019-04-26T10:58:49","guid":{"rendered":"https:\/\/www.hiperbaric.com\/?p=4755"},"modified":"2021-03-03T14:42:26","modified_gmt":"2021-03-03T13:42:26","slug":"bacalaos-alkorta-hpp-en","status":"publish","type":"post","link":"https:\/\/www.hiperbaric.com\/en\/bacalaos-alkorta-hpp-en\/","title":{"rendered":"\u201cBacalaos Alkorta\u201d achievements with high pressure processing (HPP)"},"content":{"rendered":"<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-28504 size-full\" src=\"https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/portada-1.jpg\" alt=\"\" width=\"584\" height=\"1039\" srcset=\"https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/portada-1.jpg 584w, https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/portada-1-169x300.jpg 169w, https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/portada-1-576x1024.jpg 576w, https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/portada-1-420x747.jpg 420w, https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/portada-1-315x560.jpg 315w\" sizes=\"(max-width: 584px) 100vw, 584px\" \/><\/p>\n<p><strong>Cod is amongst the most demanded fish in Europe due its nutritious, lean meat, and unique taste. Bacalaos Alkorta, one of the cod processing leaders around the world, identified the potential safety hazards and time investment during the desalting step although the shelf life of desalted cod is just within 3-7 days with proper handling and refrigeration. Thus, Bacalaos Alkorta decided to invest in the HPP technology for safety and shelf life extension, without comprising the quality of cod. Bacalaos Alkorta recently launched HPP cod loins, fillet crumbles, and Basque cuisine delicacy \u201ckokotxas\u201d (cod jowl), with enhanced safety and high product quality. This way, Bacalos Alkorta proudly steps into the HPP family with very interesting commercial applications, in the always challenging seafood sector. <\/strong><\/p>\n<p><!--more--><\/p>\n<hr \/>\n<h2>Unsalted Cod<\/h2>\n<p>Cod is the most consumed fish in Europe, and used in a number of dishes in the traditional Spaniard and Norwegian cuisine. Cod flesh is nutritious, with a high protein content, lean but containing healthy Omega-3 fatty acids, and rich in minerals (Tu Espa\u00f1a, 2019). In Europe, cod is consumed fresh during spawn season (January-April) and coastal cities throughout the year. On the other hand, salting cod makes the fish available throughout the year, providing a different but highly appreciated sensory experience (Andr\u00e9s et al. 2005; La Espa\u00f1ola Aceites, 2019).<\/p>\n<p>The traditional \u201cstack or pile salting\u201d method piles up alternate layers of cod fillets and dry salt crystals to yield a 20% (w\/w) salt concentration (Andr\u00e9s et al., 2005; Barat et al., 2003). The process takes between 2-8 weeks, depending on the overpressure exerted by the weight of each pile and the desired sensory properties. Industry processors also perform cod salting by submerging the fish in brine solutions at 5 \u00b0C for 15 days or more with a 1:1 salt to cod ratio (Andr\u00e9s et al., 2005; Barat et al., 2003). Alternatively, brine salting serves as a pre-treatment step followed by stack salting (Nguyen et al. 2010). A drying step usually follows cod salting, allowing meat to remain shelf stable during several months.<\/p>\n<p>Before cooking, submerging cod in fresh, chilled water between 1-3 days and changing water every 6-8 hours to rehydrate meat and remove excess salt, to yield \u201cunsalted\u201d cod. Nonetheless, potential safety or spoilage issues may arise during desalting due to improper handling, contamination of desalting water, or temperature abuse. In example, Barat et al. (2006) observed that the total aerobic counts remained between 2.5-3.5 log<sub>10<\/sub> cfu\/g after desalting, and the microbial load reached ~7 log<sub>10<\/sub> cfu\/g after 6 days in refrigeration at 4 \u00b0C.<\/p>\n<h2>Bacalaos Alkorta and HPP<\/h2>\n<p><a href=\"https:\/\/www.bacalaosalkorta.com\/\">Bacalaos Alkorta S.L<\/a> is a Basque fishery established in 1976 by Miguel Angel Alkorta and Jos\u00e9 Ignacio Alkorta, and the company decided to focus solely on cod processing since 1999. Nowadays, Bakalos Alkorta facilities comprise 3,700 m<sup>2<\/sup> (~39,800 ft<sup>2<\/sup>) destined to the production of salted, unsalted, and frozen cod. As a leader cod processor, Bacalaos Alkorta identified the risk and time consumption associated with cod unsalting, and decided to provide customers with a more convenient, safe, and high quality unsalted cod.<\/p>\n<p>In this regard, Bacalos Alkorta explored high pressure processing (HPP) as an alternative since <a href=\"https:\/\/www.hiperbaric.com\/en\/how-hpp-can-help-with-foodborn-illness-caused-by-vibrio\">the technology is worldwide regarded for providing safe and clean label foods<\/a>, with premium nutritional and sensorial quality.<\/p>\n<p>They have also worked closely with <a href=\"https:\/\/www.hiperbaric.com\/en\">Hiperbaric<\/a> and <a href=\"https:\/\/www.accuahpp.com\/servicios\/?lang=en\">Accua HPP Solutions<\/a> to develop an appropriate process for their products and implement it in an industrial level in a safe and reliable way.<\/p>\n<p>Time and resources invested by Bacalaos Alkorta paid off with the launching of different unsalted cod products such as loins, fillet crumbles, and Basque cuisine delicacy \u201ckokotxas\u201d (cod jowl) shown in Fig. 1.<\/p>\n<figure id=\"attachment_4746\" aria-describedby=\"caption-attachment-4746\" style=\"width: 584px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-4746 size-large\" title=\"Figure 1. Bacalos Alkorta HPP cod products: (a) loin; (b) fillet crumbles; (c) \u201cKokotxas\u201d (cod jowl).\" src=\"https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/fig-1-1024x191.jpg\" alt=\"Figure 1. Bacalos Alkorta HPP cod products: (a) loin; (b) fillet crumbles; (c) \u201cKokotxas\u201d (cod jowl).\" width=\"584\" height=\"109\" \/><figcaption id=\"caption-attachment-4746\" class=\"wp-caption-text\">Figure 1. Bacalos Alkorta HPP cod products: (a) loin; (b) fillet crumbles; (c) \u201cKokotxas\u201d (cod jowl).<\/figcaption><\/figure>\n<p>Commercial HPP ready-to-cook products by Bacalao Alkorta may be found conveniently vacuum skin-packaged in trays, saving consumers time associated with cod unsalting while improving safety and extending shelf life by processing around 5,000-6,000 bar (72,500-87,000 psi). The image below shows no difference between untreated and HPP unsalted cod samples, allowing unsalted cod samples to retain the traditional white color.<\/p>\n<figure id=\"attachment_28506\" aria-describedby=\"caption-attachment-28506\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-28506\" title=\"Figure 2. Effect of HPP cod fish samples. Source: Hiperbaric Applications and Food Processing.\" src=\"https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/figura-2-1.jpg\" alt=\"Figure 2. Effect of HPP cod fish samples. Source: Hiperbaric Applications and Food Processing.\" width=\"500\" height=\"315\" srcset=\"https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/figura-2-1.jpg 675w, https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/figura-2-1-300x189.jpg 300w, https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/figura-2-1-630x397.jpg 630w, https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/figura-2-1-420x264.jpg 420w, https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/figura-2-1-315x198.jpg 315w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><figcaption id=\"caption-attachment-28506\" class=\"wp-caption-text\">Figure 2. Effect of HPP cod fish samples. Source: Hiperbaric Applications and Food Processing.<\/figcaption><\/figure>\n<p>The HPP technology could also serve as a shelf life extension in fresh cod (Fig. 3), although color change occurs in fresh fish and meat products. Fresh cod fillets acquired an opaque white appearance around 2,000-3,000 bar (29,400-58,800 psi) according to Arnaud et al. (2017). Nonetheless, pressure levels above 3,000 bar (44,100 psi) are required to slow down microbial growth and achieve shelf life extension. Processing at 4,500 bar (66,200 psi) during 5 min resulted in non-detectable levels of the total plate count after 14 days in refrigerated storage (4 \u00b0C; Fig. 3a). Increasing pressure level to 5,500 bar (80,850 psi) controlled psycrotrophic bacteria growth during 28 days and no rancid flavors associated with lipid oxidation were reported after 18 days (Rode &amp; Hovda, 2016).<\/p>\n<figure id=\"attachment_4748\" aria-describedby=\"caption-attachment-4748\" style=\"width: 584px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-4748 size-large\" title=\"Figure 3. (a) Effect of pressure level (5 min holding time) on the microbial load of fresh cod fillets. Data from Arnaud et al. (2017). (b) Psycrotrophic bacteria growth in untreated and HPP fresh cod samples. Data from Rode &amp; Hovda (2016).\" src=\"https:\/\/www.hiperbaric.com\/wp-content\/uploads\/2019\/04\/fig-3-1024x379.jpg\" alt=\"Figure 3. (a) Effect of pressure level (5 min holding time) on the microbial load of fresh cod fillets. Data from Arnaud et al. (2017). (b) Psycrotrophic bacteria growth in untreated and HPP fresh cod samples. Data from Rode &amp; Hovda (2016).\" width=\"584\" height=\"216\" \/><figcaption id=\"caption-attachment-4748\" class=\"wp-caption-text\">Figure 3. (a) Effect of pressure level (5 min holding time) on the microbial load of fresh cod fillets. Data from Arnaud et al. (2017). (b) Psycrotrophic bacteria growth in untreated and HPP fresh cod samples. Data from Rode &amp; Hovda (2016).<\/figcaption><\/figure>\n<p>Conversely, the white appearance of unsalted cod meat does not experience alterations under high pressure (Fig. 2), allowing to apply pressure levels between 5,000-6,000 bar (72,500-87,000 psi) to further extend shelf life.<\/p>\n<p>If you would like to learn more about HPP food processing do not hesitate to<a href=\"https:\/\/www.hiperbaric.com\/en\/contact\">\u00a0reach out.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cod is amongst the most demanded fish in Europe due its nutritious, lean meat, and unique taste. Bacalaos Alkorta, one of the cod processing leaders around the world, identified the potential safety hazards and time investment during the desalting step although the shelf life of desalted cod is just within 3-7 days with proper handling&#8230;<\/p>\n","protected":false},"author":2,"featured_media":28504,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_wp_rev_ctl_limit":""},"categories":[348,253,302,262],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u201cBacalaos Alkorta\u201d Achievements with High Pressure Processing (HPP)<\/title>\n<meta name=\"description\" content=\"Bacalaos Alkorta 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