As global meat consumption is rising, the negative impact the animal husbandry sector has on the environment will increase. Greenhouse gas emissions have increased by 40 % during the last 200 years, and the animal husbandry sector is today responsible for 18 % of the total greenhouse gas emissions from food production. More environmentally friendly protein sources, such as soy and pea, must therefore be developed. Pisum sativum can (unlike the most popular meat alternative – soy) be grown all over Europe and might thus be a good alternative that allows for locally sourced alternatives to meat protein. Identifying genes with important agricultural properties might aid the development of pea cultivars with a more reliable protein content. One such gene was hypothesised to be the OMT gene, which is strongly expressed during the embryonic development of P. sativum and seems involved in functions such as seed storage and protein synthesis. Thirty-one accessions of P. sativum were tested to see if different improvement types differed from each other regarding protein content and seed weight, but no such differences were found. DNA was extracted from all accessions, sequenced, and successful sequences were tested to determine if variation in the gene correlated with protein content. Two haplotypes were identified, but there was no correlation between them and protein content found. Based on the results of this study, there is little evidence that the OMT gene correlates with protein content in the studied accessions.

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Syftet med studien är att genom sensoriska analyser sammanställa ett doft- och smakbibliotek för hampfrö-presskaka, gula mjölmasklarver, texturerad veteprotein, ärtproteinisolat och ärtprotein koncentrat. Metoderna pilotstudie, konsensustest och in-house intensitetstest används i studieprocessen. Pilotstudiens syfte är att få en ökad förståelse för produkternas doft och smak. Konsensustestet är en central punkt för uppbyggnaden av doft- och smakbiblioteket, eftersom övervägande attribut som genererats under testet används till produktbeskrivningen i doft- och smakbiblioteket. Inhouse intensitetstestet avsikt är verifiera attributgenereringens validitet från konsensustestet. Resultatet från pilotstudien bidrar med referenser till konsensustestet. Det finns även gemensamma egenskapsord för produkternas doft- och smak i pilotstudien och i konsensustestet. Resultatet från konsensustestet visar att det är svårt att särskilja smak från munkänsla, där till exempel olja kan fastställas som en smak från hampfrö-presskaka. Resultatet från inhouse intensitetstestet har ett större bortfall, vilket gör det svårt att fastställa attributen på grund av differentialen i minimum- och maximum värdet. Attribut som gav en beskrivande text till biblioteket visar att hampfrö-presskaka har en doft av gräs och tång där smak påminner om doft. Ärtproteinisolat doftar framför allt spannmål och smaken påminner om frön och majs. Gula mjölmasklarver doftar cerealier och valnötter, där smaken utgår från grundsmaken umami. Texturerad veteprotein har en doft som kan härledas till rostade vetepuffar och havregryn, där smak påminner om doft. Sista produkten ärtprotein koncentrat, har en doft av ärtskott och en besk smak. / The purpose of the study is to construct a fragrance- and flavour library for sensory analyses for hemp seed press cake, yellow mealworms, textured wheat protein, pea protein isolate and pea protein concentrate. The methods pilot study, consensus test and inhouse intensity test are used to be able to execute the study. The purpose of the pilot study is to gain an increased understanding of the fragrance- and flavour of the pre-products. The consensus test is a central point for the structure of the fragrance- and flavour library, since predominant attributes generated during the test are used for the product description in the fragrance- and flavour library. The purpose of the inhouse intensity test is to verify the validity of the attribute generation from the consensus test. The results from the pilot study contribute with references to the consensus test. There are also common attributes for the products' fragrance- and flavour in the pilot study and in the consensus test. The results from the consensus test show that it is difficult to distinguish between taste and mouthfeel. For example, can oil from hemp seed press cake be determined as a flavour. The result from the inhouse intensity test has a large statistical error, which makes it difficult to determine the attributes due to the differential in the minimum- and maximum value. Attributes that gave a descriptive text to the library show that hemp seed press cake has a scent of grass and seaweed where the taste is reminiscent of the scent. Pea protein isolate mainly smells of grain, the taste is reminiscent of seeds and corn. Yellow mealworms smell like cereals and walnuts where the taste is based on the basic taste umami. Textured wheat protein has a scent that can remind of roasted wheat puffs and oatmeal, where the taste is reminiscent of the scent. The last product is pea protein concentrate, which has a scent of pea shoots, and the taste is bitter.

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